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[GH-ISSUE #3507] Firefox does not work with Firejail on Mint 20 #2206

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opened 2026-05-05 08:53:35 -06:00 by gitea-mirror · 3 comments

gitea-mirror commented

2026-05-05 08:53:35 -06:00

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Originally created by @rpellew on GitHub (Jul 10, 2020).
Original GitHub issue: https://github.com/netblue30/firejail/issues/3507

Hi
I just upgraded my system to Linux Mint 20.
Firefox no longer works with Firejail.
It appears to start, but nothing at all appears on the screen, and I have to manually kill the process.

firejail 0.9.62
firejail-profiles 0.9.62
firefox 78.0.1

If I comment out the seccomp lines in firefox-common.profile, it allows it to start. So I assume it is making some calls that need to be allowed. I don't know to find out. I have tried the --trace and --tracelog options but nothing appears in the syslog.

Thanks.

Originally created by @rpellew on GitHub (Jul 10, 2020). Original GitHub issue: https://github.com/netblue30/firejail/issues/3507 Hi I just upgraded my system to Linux Mint 20. Firefox no longer works with Firejail. It appears to start, but nothing at all appears on the screen, and I have to manually kill the process. firejail 0.9.62 firejail-profiles 0.9.62 firefox 78.0.1 If I comment out the seccomp lines in firefox-common.profile, it allows it to start. So I assume it is making some calls that need to be allowed. I don't know to find out. I have tried the --trace and --tracelog options but nothing appears in the syslog. Thanks.

gitea-mirror closed this issue

2026-05-05 08:53:36 -06:00

gitea-mirror commented

2026-05-05 08:53:38 -06:00

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@rusty-snake commented on GitHub (Jul 10, 2020):

AMD GPU? Add !kcmp.

I have tried the --trace and --tracelog options but nothing appears in the syslog.

They are for files (e.g. blacklist) and don't affect seccomp. For seccomp you need audit, see man 8 auditctl

@rusty-snake commented on GitHub (Jul 10, 2020): AMD GPU? Add `!kcmp`. > I have tried the --trace and --tracelog options but nothing appears in the syslog. They are for files (e.g. blacklist) and don't affect seccomp. For seccomp you need audit, see `man 8 auditctl`

gitea-mirror commented

2026-05-05 08:53:38 -06:00

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@rpellew commented on GitHub (Jul 10, 2020):

Hi rusty-snake
Yeah, AMD GPU. That fixed it.
Appreciate your help.

@rpellew commented on GitHub (Jul 10, 2020): Hi rusty-snake Yeah, AMD GPU. That fixed it. Appreciate your help.

gitea-mirror commented

2026-05-05 08:53:39 -06:00

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@rusty-snake commented on GitHub (Jul 10, 2020):

This is caused by Mesa (see #3219 for more details) and fixed in the next release (#3301).

@rusty-snake commented on GitHub (Jul 10, 2020): This is caused by Mesa (see #3219 for more details) and fixed in the next release (#3301).

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Reference: github-starred/firejail#2206

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