[GH-ISSUE #2892] clicking url in thunderbird email message launches firefox with non-default profile #1807

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opened 2026-05-05 08:28:52 -06:00 by gitea-mirror · 2 comments

gitea-mirror commented

2026-05-05 08:28:52 -06:00

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Originally created by @jmcclelland on GitHub (Aug 7, 2019).
Original GitHub issue: https://github.com/netblue30/firejail/issues/2892

I noticed this change in behavior after ugprading from firejail 0.9.58.2 to 0.9.60 (as I upgraded from debian buster to debian bullseye). Before upgrading to 0.9.60, clicking on an URL opened a new tab in my running Firefox. Now, it opens a new window with a new profile.

May .mailcap files specifies /home/jamie/bin/firefox (a symlink to firejail) - so both thunderbird and firefox are run through firejail by default.

When I launch thunderbird directly, without firejail, clicking on a link opens a new tab in my existing browser. But when I run thunderbird through firejail, it launches a new browser window with a different profile.

Maybe this is a new security feature? Thanks for any tips you can provide!!

jamie

Originally created by @jmcclelland on GitHub (Aug 7, 2019). Original GitHub issue: https://github.com/netblue30/firejail/issues/2892 I noticed this change in behavior after ugprading from firejail 0.9.58.2 to 0.9.60 (as I upgraded from debian buster to debian bullseye). Before upgrading to 0.9.60, clicking on an URL opened a new tab in my running Firefox. Now, it opens a new window with a new profile. May .mailcap files specifies /home/jamie/bin/firefox (a symlink to firejail) - so both thunderbird and firefox are run through firejail by default. When I launch thunderbird directly, without firejail, clicking on a link opens a new tab in my existing browser. But when I run thunderbird through firejail, it launches a new browser window with a different profile. Maybe this is a new security feature? Thanks for any tips you can provide!! jamie

gitea-mirror

2026-05-05 08:28:52 -06:00

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gitea-mirror commented

2026-05-05 08:28:55 -06:00

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@rusty-snake commented on GitHub (Aug 7, 2019):

073a5aa576/etc/thunderbird.profile (L17-L22)

@rusty-snake commented on GitHub (Aug 7, 2019): https://github.com/netblue30/firejail/blob/073a5aa5764d8e885a609b2ff43b49cd136056fa/etc/thunderbird.profile#L17-L22

gitea-mirror commented

2026-05-05 08:28:56 -06:00

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@jmcclelland commented on GitHub (Aug 7, 2019):

Perfect, thank you!

@jmcclelland commented on GitHub (Aug 7, 2019): Perfect, thank you!

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Reference: github-starred/firejail#1807

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