Is "42FM" on Firefox Add-ons Safe to Install?
42FM allows you to listen to music on Twitch with synchronization between users that use this extension. Available commands: - "!fm <youtube link here>"
Risk Assessment
Analyzed258 security findings detected across all analyzers
Firefox extension requesting 4 permissions
Severity Breakdown
Finding Categories
YARA Rules Matched
11 rules(22 hits)Requested Permissions
4 permissionsAbout This Extension
Detailed Findings
22 totalYARA Rule Matches
11 rulesIndicators of Compromise
Network indicators, suspicious strings, and potential IoCs extracted during analysis
All Indicators · 228
detected Domain: t.open XIOC detected Domain: t.open
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detected Domain: this.options.target XIOC detected Domain: this.options.target
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detected URL: https://react.dev/errors/ XIOC detected URL: https://react.dev/errors/
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detected URL: http://www.w3.org/2000/svg XIOC detected URL: http://www.w3.org/2000/svg
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detected URL: http://www.w3.org/1998/Math/MathML XIOC detected URL: http://www.w3.org/1998/Math/MathML
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detected URL: http://www.w3.org/1999/xlink XIOC detected URL: http://www.w3.org/1999/xlink
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detected URL: https://ezgif.com/resize XIOC detected URL: https://ezgif.com/resize
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detected URL: http://www.w3.org/1999/02/22-rdf-syntax-ns# XIOC detected URL: http://www.w3.org/1999/02/22-rdf-syntax-ns#
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detected URL: http://ns.adobe.com/xap/1.0/ XIOC detected URL: http://ns.adobe.com/xap/1.0/
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detected URL: http://ns.adobe.com/xap/1.0/mm/ XIOC detected URL: http://ns.adobe.com/xap/1.0/mm/
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detected URL: http://ns.adobe.com/xap/1.0/sType/ResourceRef# XIOC detected URL: http://ns.adobe.com/xap/1.0/sType/ResourceRef#
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detected URL: https://www.twitch.tv XIOC detected URL: https://www.twitch.tv
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detected URL: http://fb.me/use-check-prop-types XIOC detected URL: http://fb.me/use-check-prop-types
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detected Domain: r.top XIOC detected Domain: r.top
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detected Domain: this.g.id XIOC detected Domain: this.g.id
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detected Domain: n.search XIOC detected Domain: n.search
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detected Domain: r.search XIOC detected Domain: r.search
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detected Domain: t.channel XIOC detected Domain: t.channel
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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: tw.r.l.call XIOC detected Domain: tw.r.l.call
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detected Domain: t.g.map XIOC detected Domain: t.g.map
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detected Domain: tp.yt XIOC detected Domain: tp.yt
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detected Domain: www.youtube.com XIOC detected Domain: www.youtube.com
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detected Domain: window.top XIOC detected Domain: window.top
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detected Domain: window.location.host XIOC detected Domain: window.location.host
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detected Domain: e.search XIOC detected Domain: e.search
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detected Domain: array.prototype.foreach.call XIOC detected Domain: array.prototype.foreach.call
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detected Domain: this.h.next XIOC detected Domain: this.h.next
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detected Domain: this.g.next XIOC detected Domain: this.g.next
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detected Domain: t.g.call XIOC detected Domain: t.g.call
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detected Domain: error.call XIOC detected Domain: error.call
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detected Domain: j.call XIOC detected Domain: j.call
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detected Domain: array.prototype.splice.call XIOC detected Domain: array.prototype.splice.call
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detected Domain: f.next XIOC detected Domain: f.next
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detected Domain: developers.google.com XIOC detected Domain: developers.google.com
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detected Domain: t.g.j.next XIOC detected Domain: t.g.j.next
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detected Domain: previous.next XIOC detected Domain: previous.next
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detected Domain: t.entry.previous.next XIOC detected Domain: t.entry.previous.next
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detected Domain: t.entry.next XIOC detected Domain: t.entry.next
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detected Domain: array.prototype.indexof.call XIOC detected Domain: array.prototype.indexof.call
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detected Domain: api.42fm.app XIOC detected Domain: api.42fm.app
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detected Domain: aa.off XIOC detected Domain: aa.off
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detected Domain: e.room XIOC detected Domain: e.room
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detected Domain: e.current.yt XIOC detected Domain: e.current.yt
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detected Domain: c.yt XIOC detected Domain: c.yt
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detected Domain: twitch.tv XIOC detected Domain: twitch.tv
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detected Domain: window.yt XIOC detected Domain: window.yt
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detected Domain: this.io.open XIOC detected Domain: this.io.open
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detected Domain: e.data.pid XIOC detected Domain: e.data.pid
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detected Domain: e.data.data XIOC detected Domain: e.data.data
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detected Domain: this.ms XIOC detected Domain: this.ms
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detected Domain: e.open XIOC detected Domain: e.open
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detected Domain: r.host XIOC detected Domain: r.host
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detected Domain: r.id XIOC detected Domain: r.id
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detected Domain: engine.io XIOC detected Domain: engine.io
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detected Domain: e.target XIOC detected Domain: e.target
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detected Domain: this.transport.name XIOC detected Domain: this.transport.name
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detected Domain: an.call XIOC detected Domain: an.call
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detected Domain: e.off XIOC detected Domain: e.off
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detected Domain: this.io XIOC detected Domain: this.io
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detected Domain: this.open XIOC detected Domain: this.open
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detected Domain: this.ws XIOC detected Domain: this.ws
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detected Domain: c.read XIOC detected Domain: c.read
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detected Domain: p.data XIOC detected Domain: p.data
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detected Domain: u.host XIOC detected Domain: u.host
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detected Domain: t.secure XIOC detected Domain: t.secure
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detected Domain: this.secure XIOC detected Domain: this.secure
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detected Domain: e.prototype.name XIOC detected Domain: e.prototype.name
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detected Domain: i.map XIOC detected Domain: i.map
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detected Domain: iy.open XIOC detected Domain: iy.open
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detected Domain: iy.ping XIOC detected Domain: iy.ping
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detected Domain: this.off XIOC detected Domain: this.off
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detected Domain: id.prototype.off XIOC detected Domain: id.prototype.off
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detected Domain: this.opts.secure XIOC detected Domain: this.opts.secure
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detected Domain: n.data XIOC detected Domain: n.data
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detected Domain: n.open XIOC detected Domain: n.open
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detected Domain: s.map XIOC detected Domain: s.map
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detected Domain: tw.select XIOC detected Domain: tw.select
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detected Domain: window.open XIOC detected Domain: window.open
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detected Domain: tw.hr XIOC detected Domain: tw.hr
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detected Domain: e.yt XIOC detected Domain: e.yt
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detected Domain: a.map XIOC detected Domain: a.map
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detected Domain: hasownproperty.call XIOC detected Domain: hasownproperty.call
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detected Domain: e.map XIOC detected Domain: e.map
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detected Domain: r.call XIOC detected Domain: r.call
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detected Domain: f.map XIOC detected Domain: f.map
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detected Domain: i.off XIOC detected Domain: i.off
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detected Domain: o.off XIOC detected Domain: o.off
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detected Domain: t.brands.map XIOC detected Domain: t.brands.map
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detected Domain: g.top-b.top XIOC detected Domain: g.top-b.top
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detected Domain: h.top XIOC detected Domain: h.top
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detected Domain: i.top XIOC detected Domain: i.top
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detected Domain: t.top XIOC detected Domain: t.top
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detected Domain: n.top XIOC detected Domain: n.top
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detected Domain: a.top XIOC detected Domain: a.top
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detected Domain: r.target XIOC detected Domain: r.target
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detected Domain: o.style XIOC detected Domain: o.style
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detected Domain: y.as XIOC detected Domain: y.as
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detected Domain: a.as XIOC detected Domain: a.as
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detected Domain: e.host XIOC detected Domain: e.host
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detected Domain: t.host XIOC detected Domain: t.host
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detected Domain: n.host XIOC detected Domain: n.host
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detected Domain: r.open XIOC detected Domain: r.open
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detected Domain: e.options.target XIOC detected Domain: e.options.target
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detected MD5 Hash: E6EEB53C840711E89A388844EE40A2E7 XIOC detected MD5 Hash: E6EEB53C840711E89A388844EE40A2E7
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detected URL: https://youtube.com/watch?v= XIOC detected URL: https://youtube.com/watch?v=
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detected MD5 Hash: E6EEB53D840711E89A388844EE40A2E7 XIOC detected MD5 Hash: E6EEB53D840711E89A388844EE40A2E7
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detected Domain: t.props.map XIOC detected Domain: t.props.map
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detected Domain: this.name XIOC detected Domain: this.name
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detected Domain: this.id XIOC detected Domain: this.id
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detected Domain: x.call XIOC detected Domain: x.call
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detected Domain: o.nc XIOC detected Domain: o.nc
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detected Domain: array.prototype.slice.call XIOC detected Domain: array.prototype.slice.call
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detected Domain: o.map XIOC detected Domain: o.map
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detected URL: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/) XIOC detected URL: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)
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detected Domain: e.constructor.name XIOC detected Domain: e.constructor.name
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detected Domain: object.name XIOC detected Domain: object.name
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detected Domain: t.media XIOC detected Domain: t.media
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detected Domain: e.id-t.id XIOC detected Domain: e.id-t.id
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detected Domain: performance.now XIOC detected Domain: performance.now
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detected Domain: l.now XIOC detected Domain: l.now
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detected Domain: s.now XIOC detected Domain: s.now
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detected Domain: g.call XIOC detected Domain: g.call
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detected Domain: t.call XIOC detected Domain: t.call
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detected Domain: o.target XIOC detected Domain: o.target
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detected Domain: r.data XIOC detected Domain: r.data
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detected Domain: t.as XIOC detected Domain: t.as
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detected Domain: n.media XIOC detected Domain: n.media
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detected Domain: u6.call XIOC detected Domain: u6.call
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detected Domain: this.next XIOC detected Domain: this.next
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detected Domain: e.info XIOC detected Domain: e.info
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detected Domain: r.is XIOC detected Domain: r.is
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detected Domain: e.events XIOC detected Domain: e.events
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detected Domain: b.top XIOC detected Domain: b.top
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detected Domain: sj.next XIOC detected Domain: sj.next
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detected Domain: e.id XIOC detected Domain: e.id
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detected Domain: w.data XIOC detected Domain: w.data
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detected Domain: b.data XIOC detected Domain: b.data
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detected Domain: t.name XIOC detected Domain: t.name
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detected Domain: s.data XIOC detected Domain: s.data
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detected Domain: n.property XIOC detected Domain: n.property
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detected Domain: i.style XIOC detected Domain: i.style
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detected Domain: u.memoizedprops.style XIOC detected Domain: u.memoizedprops.style
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detected Domain: i.id XIOC detected Domain: i.id
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detected Domain: r.media XIOC detected Domain: r.media
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detected Domain: r.data.map XIOC detected Domain: r.data.map
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detected Domain: t.data XIOC detected Domain: t.data
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detected Domain: u.next XIOC detected Domain: u.next
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detected Domain: r.next XIOC detected Domain: r.next
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detected Domain: o.data XIOC detected Domain: o.data
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detected Domain: r.events XIOC detected Domain: r.events
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detected Domain: n.compare XIOC detected Domain: n.compare
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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: m.call XIOC detected Domain: m.call
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detected Domain: h.next XIOC detected Domain: h.next
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detected Domain: oj.next XIOC detected Domain: oj.next
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detected Domain: i.events XIOC detected Domain: i.events
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detected Domain: oq.next XIOC detected Domain: oq.next
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detected Domain: e.next XIOC detected Domain: e.next
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detected Domain: rj.next XIOC detected Domain: rj.next
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detected Domain: object.prototype.tostring.call XIOC detected Domain: object.prototype.tostring.call
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detected Domain: a.call XIOC detected Domain: a.call
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detected Domain: t.next XIOC detected Domain: t.next
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detected Domain: i.next XIOC detected Domain: i.next
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detected Domain: n.next XIOC detected Domain: n.next
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detected Domain: object.is XIOC detected Domain: object.is
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detected Domain: t.target XIOC detected Domain: t.target
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detected Domain: o.next XIOC detected Domain: o.next
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detected Domain: a.next XIOC detected Domain: a.next
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detected Domain: t.id XIOC detected Domain: t.id
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detected Domain: r.name XIOC detected Domain: r.name
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detected Domain: s.next XIOC detected Domain: s.next
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detected Domain: e.style XIOC detected Domain: e.style
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detected Domain: errors.md XIOC detected Domain: errors.md
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detected Domain: n.name XIOC detected Domain: n.name
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detected Domain: o.name XIOC detected Domain: o.name
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detected Domain: this.target XIOC detected Domain: this.target
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detected Domain: date.now XIOC detected Domain: date.now
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detected Domain: e.data XIOC detected Domain: e.data
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detected Domain: socket.io XIOC detected Domain: socket.io
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detected Domain: l.name XIOC detected Domain: l.name
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detected Domain: n.call XIOC detected Domain: n.call
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detected Domain: e.call XIOC detected Domain: e.call
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detected Domain: e.name XIOC detected Domain: e.name
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detected Domain: o.call XIOC detected Domain: o.call
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detected Domain: i.call XIOC detected Domain: i.call
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detected Domain: r.tab.id XIOC detected Domain: r.tab.id
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detected Domain: n.id XIOC detected Domain: n.id
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detected Domain: www.twitch.tv XIOC detected Domain: www.twitch.tv
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detected Domain: fb.me XIOC detected Domain: fb.me
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detected Domain: react.dev XIOC detected Domain: react.dev
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detected Domain: github.com XIOC detected Domain: github.com
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detected Domain: youtube.com XIOC detected Domain: youtube.com
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detected Domain: globalthis.chrome XIOC detected Domain: globalthis.chrome
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detected Domain: globalthis.chrome.runtime.id XIOC detected Domain: globalthis.chrome.runtime.id
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detected Domain: globalthis.browser.runtime.id XIOC detected Domain: globalthis.browser.runtime.id
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detected Domain: s.call XIOC detected Domain: s.call
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detected Domain: object.prototype.hasownproperty.call XIOC detected Domain: object.prototype.hasownproperty.call
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detected Domain: r.tab XIOC detected Domain: r.tab
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detected Domain: s.id XIOC detected Domain: s.id
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detected Domain: t9fc376f2a289b1f0bf6ac17133f8bbad.40599b6053ce1e988dae7e63cab9ca07.addons.mozilla.org XIOC detected Domain: t9fc376f2a289b1f0bf6ac17133f8bbad.40599b6053ce1e988dae7e63cab9ca07.addons.mozilla.org
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detected Domain: ԟ.eg XIOC detected Domain: ԟ.eg
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detected Domain: www.w3.org XIOC detected Domain: www.w3.org
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detected Domain: ezgif.com XIOC detected Domain: ezgif.com
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detected Domain: b6on.dj XIOC detected Domain: b6on.dj
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detected Domain: pḉ.ai XIOC detected Domain: pḉ.ai
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detected Domain: ns.adobe.com XIOC detected Domain: ns.adobe.com
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detected IP: ::af XIOC detected IP: ::af
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detected IP: 1.76.47.26 XIOC detected IP: 1.76.47.26
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detected IP: ::bef XIOC detected IP: ::bef
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detected Domain: signingca1.addons.mozilla.org XIOC detected Domain: signingca1.addons.mozilla.org
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detected Domain: mozilla.com XIOC detected Domain: mozilla.com
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detected Domain: addons.mozilla.org XIOC detected Domain: addons.mozilla.org
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detected Domain: content-signature.mozilla.org XIOC detected Domain: content-signature.mozilla.org
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detected URL: https://github.com/42fm XIOC detected URL: https://github.com/42fm
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detected URL: https://github.com/styled-components/styled-components/blob/main/packages/styled-components/src/utils/errors.md# XIOC detected URL: https://github.com/styled-components/styled-components/blob/main/packages/styled-components/src/utils/errors.md#
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detected MD5 Hash: 40599b6053ce1e988dae7e63cab9ca07 XIOC detected MD5 Hash: 40599b6053ce1e988dae7e63cab9ca07
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detected URL: https://developers.google.com/youtube/iframe_api_reference#Events XIOC detected URL: https://developers.google.com/youtube/iframe_api_reference#Events
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detected URL: http:// XIOC detected URL: http://
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detected URL: https://www.youtube.com XIOC detected URL: https://www.youtube.com
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detected URL: https://api.42fm.app XIOC detected URL: https://api.42fm.app
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detected URL: https:// XIOC detected URL: https://
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detected MD5 Hash: E6EEB53B840711E89A388844EE40A2E7 XIOC detected MD5 Hash: E6EEB53B840711E89A388844EE40A2E7
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detected MD5 Hash: E6EEB53A840711E89A388844EE40A2E7 XIOC detected MD5 Hash: E6EEB53A840711E89A388844EE40A2E7
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detected Domain: t.map XIOC detected Domain: t.map
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detected Domain: this.gs XIOC detected Domain: this.gs
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detected IP: :: XIOC detected IP: ::
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Security Analysis Summary
Security Analysis Overview
42FM is a Firefox Add-ons extension published by loczek. Version 0.2.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 80.48/100 (HIGH risk) based on 258 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: 22 finding(s)
- Medium: 236 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
42FM is published by loczek on the Firefox Add-ons marketplace. The extension has approximately 125 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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