Is "Soapbox Signer" on Firefox Add-ons Safe to Install?
Soapbox Signer is a browser extension implementing the NIP-07 signer protocol for Nostr. Manage multiple user profiles, sign events, and enjoy NIP-04/NIP-44 message encryption. Features granular per-domain permission controls for public key access, event signing with per-kind allowlists, and encryption operations. Supports Chrome and Firefox with profile metadata management and trusted domain settings.
Risk Assessment
Analyzed345 security findings detected across all analyzers
Firefox extension requesting 7 permissions
Severity Breakdown
Finding Categories
YARA Rules Matched
10 rules(74 hits)Requested Permissions
7 permissionsExchange messages with programs outside the browser
About This Extension
Detailed Findings
79 totalYARA Rule Matches
10 rulesIndicators of Compromise
Network indicators, suspicious strings, and potential IoCs extracted during analysis
All Indicators · 259
detected Domain: r.website XIOC detected Domain: r.website
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detected Domain: this.name XIOC detected Domain: this.name
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detected Domain: t.id XIOC detected Domain: t.id
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detected Domain: q.id XIOC detected Domain: q.id
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detected IP: ::bac XIOC detected IP: ::bac
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detected URL: https://react.dev/errors/ XIOC detected URL: https://react.dev/errors/
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detected Domain: signer.soapbox.pub XIOC detected Domain: signer.soapbox.pub
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detected Domain: content-signature.mozilla.org XIOC detected Domain: content-signature.mozilla.org
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detected Domain: mozilla.com XIOC detected Domain: mozilla.com
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detected Domain: signingca1.addons.mozilla.org XIOC detected Domain: signingca1.addons.mozilla.org
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detected IP: 500:: XIOC detected IP: 500::
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detected IP: 400:: XIOC detected IP: 400::
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detected IP: ::f XIOC detected IP: ::f
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detected Domain: fn.call XIOC detected Domain: fn.call
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detected Domain: globalthis.chrome XIOC detected Domain: globalthis.chrome
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detected Domain: gist.github.com XIOC detected Domain: gist.github.com
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detected Domain: wxt.dev XIOC detected Domain: wxt.dev
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detected Domain: github.com XIOC detected Domain: github.com
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detected Domain: tailwindcss.com XIOC detected Domain: tailwindcss.com
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detected Domain: td05783d5bae0f6756f1ce16a1ea0b186.f8814076374c38ea4aa32120a3d01701.addons.mozilla.org XIOC detected Domain: td05783d5bae0f6756f1ce16a1ea0b186.f8814076374c38ea4aa32120a3d01701.addons.mozilla.org
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detected Domain: h.map XIOC detected Domain: h.map
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detected Domain: i.map XIOC detected Domain: i.map
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detected Domain: je.storage XIOC detected Domain: je.storage
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detected Domain: u.map XIOC detected Domain: u.map
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detected Domain: g.map XIOC detected Domain: g.map
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detected Domain: u.watch XIOC detected Domain: u.watch
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detected Domain: r.next XIOC detected Domain: r.next
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detected Domain: o.id XIOC detected Domain: o.id
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detected Domain: this.off XIOC detected Domain: this.off
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detected Domain: e.map XIOC detected Domain: e.map
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detected Domain: e.permissions.signevent.map XIOC detected Domain: e.permissions.signevent.map
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detected Domain: date.now XIOC detected Domain: date.now
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detected Domain: r.map XIOC detected Domain: r.map
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detected Domain: browser.storage XIOC detected Domain: browser.storage
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detected Domain: r.one XIOC detected Domain: r.one
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detected Domain: a.zero XIOC detected Domain: a.zero
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detected Domain: a.one XIOC detected Domain: a.one
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detected Domain: paulmillr.com XIOC detected Domain: paulmillr.com
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detected Domain: i.id XIOC detected Domain: i.id
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detected Domain: r.id XIOC detected Domain: r.id
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detected Domain: e.id XIOC detected Domain: e.id
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detected Domain: n.zero XIOC detected Domain: n.zero
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detected Domain: this.py XIOC detected Domain: this.py
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detected Domain: e.gy XIOC detected Domain: e.gy
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detected Domain: r.zero XIOC detected Domain: r.zero
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detected Domain: t.zero XIOC detected Domain: t.zero
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detected Domain: t.is XIOC detected Domain: t.is
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detected Domain: t.one XIOC detected Domain: t.one
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detected Domain: i.is XIOC detected Domain: i.is
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detected Domain: p.py XIOC detected Domain: p.py
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detected Domain: k.py XIOC detected Domain: k.py
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detected Domain: n.is XIOC detected Domain: n.is
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detected Domain: this.is XIOC detected Domain: this.is
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detected Domain: n.one XIOC detected Domain: n.one
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detected Domain: f.zero XIOC detected Domain: f.zero
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detected Domain: this.last.next XIOC detected Domain: this.last.next
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detected Domain: this.first.next XIOC detected Domain: this.first.next
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detected Domain: s.id XIOC detected Domain: s.id
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detected Domain: s.map XIOC detected Domain: s.map
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detected Domain: n.map XIOC detected Domain: n.map
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detected Domain: fn.map XIOC detected Domain: fn.map
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detected Domain: t.constructor.name XIOC detected Domain: t.constructor.name
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detected Domain: n.fire XIOC detected Domain: n.fire
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detected Domain: this.ws.ping XIOC detected Domain: this.ws.ping
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detected Domain: t.channel XIOC detected Domain: t.channel
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detected Domain: s.author XIOC detected Domain: s.author
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detected Domain: t.author XIOC detected Domain: t.author
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detected Domain: n.id XIOC detected Domain: n.id
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detected Domain: t.next XIOC detected Domain: t.next
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detected Domain: t.event.id XIOC detected Domain: t.event.id
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detected Domain: m.website XIOC detected Domain: m.website
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detected Domain: m.name XIOC detected Domain: m.name
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detected Domain: e.name XIOC detected Domain: e.name
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detected Domain: t.map XIOC detected Domain: t.map
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detected Domain: this.id XIOC detected Domain: this.id
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detected Domain: t.data XIOC detected Domain: t.data
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detected Domain: this.state.data XIOC detected Domain: this.state.data
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detected Domain: object.prototype.tostring.call XIOC detected Domain: object.prototype.tostring.call
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detected Domain: ht.call XIOC detected Domain: ht.call
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detected Domain: relay.ditto.pub XIOC detected Domain: relay.ditto.pub
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detected Domain: relay.primal.net XIOC detected Domain: relay.primal.net
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detected Domain: relay.damus.io XIOC detected Domain: relay.damus.io
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detected Domain: e.data XIOC detected Domain: e.data
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detected Domain: c.zero XIOC detected Domain: c.zero
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detected Domain: c.one XIOC detected Domain: c.one
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detected Domain: s.state.data XIOC detected Domain: s.state.data
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detected Domain: t.build XIOC detected Domain: t.build
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detected Domain: state.data XIOC detected Domain: state.data
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detected Domain: e.state.data XIOC detected Domain: e.state.data
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detected Domain: s.data XIOC detected Domain: s.data
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detected Domain: x.py XIOC detected Domain: x.py
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detected Domain: d.map XIOC detected Domain: d.map
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detected Domain: l.zero XIOC detected Domain: l.zero
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detected Domain: t.gy XIOC detected Domain: t.gy
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detected Domain: e.zero XIOC detected Domain: e.zero
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detected Domain: e.is XIOC detected Domain: e.is
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detected Domain: e.one XIOC detected Domain: e.one
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detected Domain: o.author XIOC detected Domain: o.author
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detected Domain: e.author XIOC detected Domain: e.author
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detected Domain: e.next XIOC detected Domain: e.next
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detected Domain: o.map XIOC detected Domain: o.map
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detected Domain: dt.map XIOC detected Domain: dt.map
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detected Domain: e.constructor.name XIOC detected Domain: e.constructor.name
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detected Domain: r.py XIOC detected Domain: r.py
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detected Domain: e.ping XIOC detected Domain: e.ping
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detected Domain: y.name XIOC detected Domain: y.name
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detected Domain: window.location.search XIOC detected Domain: window.location.search
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detected Domain: r.metadata.name XIOC detected Domain: r.metadata.name
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detected Domain: n.data XIOC detected Domain: n.data
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detected Domain: e.event.id XIOC detected Domain: e.event.id
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detected Domain: e.channel XIOC detected Domain: e.channel
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detected Domain: r.data XIOC detected Domain: r.data
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detected Domain: n.items.map XIOC detected Domain: n.items.map
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detected Domain: o.data XIOC detected Domain: o.data
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detected Domain: this.data XIOC detected Domain: this.data
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detected Domain: i.unionerrors.map XIOC detected Domain: i.unionerrors.map
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detected Domain: h.date XIOC detected Domain: h.date
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detected Domain: object.prototype.hasownproperty.call XIOC detected Domain: object.prototype.hasownproperty.call
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detected Domain: t.relays.map XIOC detected Domain: t.relays.map
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detected Domain: this.opts.open XIOC detected Domain: this.opts.open
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detected Domain: x.id XIOC detected Domain: x.id
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detected Domain: def.in XIOC detected Domain: def.in
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detected Domain: def.rest XIOC detected Domain: def.rest
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detected Domain: l.data XIOC detected Domain: l.data
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detected Domain: a.map XIOC detected Domain: a.map
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detected Domain: this.buffer.read XIOC detected Domain: this.buffer.read
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detected Domain: underlyingwebsocket.open XIOC detected Domain: underlyingwebsocket.open
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detected Domain: o.open XIOC detected Domain: o.open
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detected Domain: w.open XIOC detected Domain: w.open
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detected Domain: n.open XIOC detected Domain: n.open
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detected Domain: i.search XIOC detected Domain: i.search
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detected Domain: m.id XIOC detected Domain: m.id
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detected Domain: your-website.com XIOC detected Domain: your-website.com
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detected Domain: r.name XIOC detected Domain: r.name
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detected Domain: l.id XIOC detected Domain: l.id
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detected Domain: d.id XIOC detected Domain: d.id
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detected Domain: websocket.open XIOC detected Domain: websocket.open
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detected Domain: a.open XIOC detected Domain: a.open
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detected Domain: this.backoff.next XIOC detected Domain: this.backoff.next
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detected Domain: m.call XIOC detected Domain: m.call
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detected Domain: ol.call XIOC detected Domain: ol.call
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detected Domain: react.dev XIOC detected Domain: react.dev
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detected Domain: e.website XIOC detected Domain: e.website
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detected Domain: c.map XIOC detected Domain: c.map
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detected Domain: a.media XIOC detected Domain: a.media
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detected Domain: a.as XIOC detected Domain: a.as
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detected Domain: q.now XIOC detected Domain: q.now
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detected Domain: d.now XIOC detected Domain: d.now
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detected Domain: performance.now XIOC detected Domain: performance.now
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detected Domain: e.id-r.id XIOC detected Domain: e.id-r.id
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detected Domain: nl.call XIOC detected Domain: nl.call
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detected Domain: l.style XIOC detected Domain: l.style
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detected Domain: n.call XIOC detected Domain: n.call
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detected Domain: u.call XIOC detected Domain: u.call
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detected Domain: wn.call XIOC detected Domain: wn.call
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detected Domain: l.call XIOC detected Domain: l.call
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detected Domain: t.name XIOC detected Domain: t.name
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detected Domain: l.name XIOC detected Domain: l.name
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detected Domain: u.next XIOC detected Domain: u.next
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detected Domain: t.target XIOC detected Domain: t.target
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detected Domain: object.is XIOC detected Domain: object.is
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detected Domain: this.target XIOC detected Domain: this.target
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detected Domain: u.name XIOC detected Domain: u.name
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detected Domain: a.name XIOC detected Domain: a.name
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detected Domain: l.target XIOC detected Domain: l.target
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detected Domain: n.next XIOC detected Domain: n.next
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detected Domain: v.call XIOC detected Domain: v.call
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detected Domain: d.next XIOC detected Domain: d.next
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detected Domain: qt.next XIOC detected Domain: qt.next
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detected Domain: l.next XIOC detected Domain: l.next
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detected Domain: c.next XIOC detected Domain: c.next
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detected Domain: i.next XIOC detected Domain: i.next
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detected Domain: nl.next XIOC detected Domain: nl.next
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detected Domain: n.events XIOC detected Domain: n.events
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detected Domain: ml.next XIOC detected Domain: ml.next
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detected Domain: b.call XIOC detected Domain: b.call
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detected Domain: b.next XIOC detected Domain: b.next
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detected Domain: s.next XIOC detected Domain: s.next
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detected Domain: a.next XIOC detected Domain: a.next
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detected Domain: a.property XIOC detected Domain: a.property
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detected Domain: l.events XIOC detected Domain: l.events
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detected Domain: a.compare XIOC detected Domain: a.compare
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detected Domain: t.events XIOC detected Domain: t.events
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detected Domain: u.data XIOC detected Domain: u.data
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detected Domain: m.next XIOC detected Domain: m.next
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detected Domain: e.data.map XIOC detected Domain: e.data.map
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detected Domain: g.data XIOC detected Domain: g.data
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detected Domain: tl.data XIOC detected Domain: tl.data
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detected Domain: h.target XIOC detected Domain: h.target
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detected Domain: ze.next XIOC detected Domain: ze.next
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detected Domain: t.top XIOC detected Domain: t.top
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detected Domain: s.memoizedprops.style XIOC detected Domain: s.memoizedprops.style
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detected Domain: n.style XIOC detected Domain: n.style
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detected Domain: cy.call XIOC detected Domain: cy.call
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detected Domain: n.info XIOC detected Domain: n.info
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detected URL: http://*/* XIOC detected URL: http://*/*
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detected URL: https://$ XIOC detected URL: https://$
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detected MD5 Hash: f8814076374c38ea4aa32120a3d01701 XIOC detected MD5 Hash: f8814076374c38ea4aa32120a3d01701
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detected Domain: t.as XIOC detected Domain: t.as
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detected Domain: u.target XIOC detected Domain: u.target
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detected Domain: f.id XIOC detected Domain: f.id
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detected Domain: y.id XIOC detected Domain: y.id
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detected Domain: f.map XIOC detected Domain: f.map
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detected Domain: rl.map XIOC detected Domain: rl.map
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detected Domain: k.map XIOC detected Domain: k.map
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detected Domain: tu.storage XIOC detected Domain: tu.storage
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detected Domain: f.next XIOC detected Domain: f.next
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detected Domain: p.ping XIOC detected Domain: p.ping
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detected Domain: x.name XIOC detected Domain: x.name
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detected Domain: d.name XIOC detected Domain: d.name
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detected Domain: c.id XIOC detected Domain: c.id
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detected Domain: soapbox.pub XIOC detected Domain: soapbox.pub
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detected Domain: q.map XIOC detected Domain: q.map
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detected URL: https://example.com/avatar.jpg XIOC detected URL: https://example.com/avatar.jpg
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detected URL: https://your-website.com XIOC detected URL: https://your-website.com
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detected URL: https://soapbox.pub/signer/ XIOC detected URL: https://soapbox.pub/signer/
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detected Domain: domain.com XIOC detected Domain: domain.com
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detected Domain: n.website XIOC detected Domain: n.website
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detected Domain: n.name XIOC detected Domain: n.name
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detected Domain: o.website XIOC detected Domain: o.website
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detected Domain: o.name XIOC detected Domain: o.name
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detected Domain: p.map XIOC detected Domain: p.map
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detected Domain: x.map XIOC detected Domain: x.map
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detected Domain: c.name XIOC detected Domain: c.name
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detected Domain: u.click XIOC detected Domain: u.click
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detected Domain: u.download XIOC detected Domain: u.download
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detected Domain: t.metadata.name XIOC detected Domain: t.metadata.name
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detected Domain: j.id XIOC detected Domain: j.id
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detected Domain: a.data XIOC detected Domain: a.data
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detected Domain: f.data XIOC detected Domain: f.data
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detected Domain: e.select XIOC detected Domain: e.select
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detected Domain: p.data XIOC detected Domain: p.data
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detected Domain: u.id XIOC detected Domain: u.id
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detected Domain: y.website XIOC detected Domain: y.website
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detected Domain: r.metadata.website XIOC detected Domain: r.metadata.website
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detected Domain: a.ping XIOC detected Domain: a.ping
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detected Domain: s.metadata.name XIOC detected Domain: s.metadata.name
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detected Domain: m.map XIOC detected Domain: m.map
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detected Domain: a.metadata.name XIOC detected Domain: a.metadata.name
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detected Domain: a.id XIOC detected Domain: a.id
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detected Domain: i.metadata.name XIOC detected Domain: i.metadata.name
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detected Domain: t.state.data XIOC detected Domain: t.state.data
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detected URL: http://addons.mozilla.org/ca/crl.pem0N XIOC detected URL: http://addons.mozilla.org/ca/crl.pem0N
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detected Domain: doc.open XIOC detected Domain: doc.open
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detected Domain: fxdkͽg.do XIOC detected Domain: fxdkͽg.do
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detected Domain: this.locationwatcher.run XIOC detected Domain: this.locationwatcher.run
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detected Domain: i.runtime.id XIOC detected Domain: i.runtime.id
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detected Domain: window.top XIOC detected Domain: window.top
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detected Domain: p.id XIOC detected Domain: p.id
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detected URL: https://gist.github.com/$ XIOC detected URL: https://gist.github.com/$
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detected URL: http:// XIOC detected URL: http://
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detected URL: https://wxt.dev/guide/go-further/testing.html XIOC detected URL: https://wxt.dev/guide/go-further/testing.html
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detected URL: https://github.com/wxt-dev/wxt/issues/371 XIOC detected URL: https://github.com/wxt-dev/wxt/issues/371
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detected URL: https://tailwindcss.com XIOC detected URL: https://tailwindcss.com
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detected URL: https:// XIOC detected URL: https://
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detected Domain: this.next XIOC detected Domain: this.next
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detected Domain: rn.call XIOC detected Domain: rn.call
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detected Domain: this.ws XIOC detected Domain: this.ws
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detected Domain: e.media XIOC detected Domain: e.media
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Security Analysis Summary
Security Analysis Overview
Soapbox Signer is a Firefox Add-ons extension published by Soapbox. Version 0.2.3 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 345 security findings.
Risk Assessment
This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.
Findings Breakdown
- High: 74 finding(s)
- Medium: 271 finding(s)
What Was Analyzed
The security assessment covers multiple analysis categories:
- Malware Detection: YARA rule matching against 2,400+ malware signatures
- Secret Detection: Scanning for exposed API keys, tokens, and credentials
- Static Analysis: Code-level security analysis for common vulnerability patterns
- Network Analysis: Detection of suspicious network communications and endpoints
- Obfuscation Detection: Identification of code obfuscation techniques
Developer Information
Soapbox Signer is published by Soapbox on the Firefox Add-ons marketplace. The extension has approximately 6 users.
Recommendation
This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.
Source Code Not Available
Source code is not available for this version of the extension.
Frequently Asked Questions
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