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[GH-ISSUE #1055] Firefox Developer Version - 52.0a2 (2017-01-16) (64-bit) not setting as default browser #719

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opened 2026-05-05 06:31:17 -06:00 by gitea-mirror · 3 comments

gitea-mirror commented

2026-05-05 06:31:17 -06:00

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Originally created by @manatarms on GitHub (Jan 17, 2017).
Original GitHub issue: https://github.com/netblue30/firejail/issues/1055

Hello everyone,

I'm using Firejail with FF developer version on Linux Mint 18.1 Cinnamon. I have the FF developer directory in /usr/lib/firefox-dev.

For some reason every time I run FF using firejail /usr/lib/firefox-dev/firefox it does a check for setting FF as the default browser (To which I have said yes every time, but it stills does the check). However, when I just run FF developer without Firejail it works perfectly.

Also FF developer doesn't update when I run it with Firejail. It says FF doesn't have the correct permission. Again, it works perfectly when not running Firejail.

I'm pretty sure I need to do some small changes, any help is appreciated.

Have a great day,
Thank you

Originally created by @manatarms on GitHub (Jan 17, 2017). Original GitHub issue: https://github.com/netblue30/firejail/issues/1055 Hello everyone, I'm using Firejail with FF developer version on Linux Mint 18.1 Cinnamon. I have the FF developer directory in _/usr/lib/firefox-dev_. For some reason every time I run FF using _firejail /usr/lib/firefox-dev/firefox_ it does a check for setting FF as the default browser (To which I have said yes every time, but it stills does the check). However, when I just run FF developer without Firejail it works perfectly. Also FF developer doesn't update when I run it with Firejail. It says FF doesn't have the correct permission. Again, it works perfectly when not running Firejail. I'm pretty sure I need to do some small changes, any help is appreciated. Have a great day, Thank you

gitea-mirror closed this issue

2026-05-05 06:31:19 -06:00

gitea-mirror commented

2026-05-05 06:31:22 -06:00

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@pyamsoft commented on GitHub (Jan 17, 2017):

Chiming in to say I can confirm this issue, but only on the first launch.

In my case, I launch Firefox with --private=DIRECTORY, so it does save to a location on disk. On the first launch after upgrading from 0.9.44.4 to 0.9.44.6 I noticed the issue about default browsers, but after selecting the default browser once the issue went away.

Downgrading to 0.9.44.4 seems to fix the issue.

@pyamsoft commented on GitHub (Jan 17, 2017): Chiming in to say I can confirm this issue, but only on the first launch. In my case, I launch Firefox with --private=DIRECTORY, so it does save to a location on disk. On the first launch after upgrading from 0.9.44.4 to 0.9.44.6 I noticed the issue about default browsers, but after selecting the default browser once the issue went away. Downgrading to 0.9.44.4 seems to fix the issue.

gitea-mirror commented

2026-05-05 06:31:24 -06:00

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@manatarms commented on GitHub (Jan 17, 2017):

I'm trying to add the directory location as a whitelist directory but Firejail says Error: invalid whitelist path /usr/lib/firefox-dev. Any idea about what I could do? I think whitelisting this directory will fix the other issues for me.

@manatarms commented on GitHub (Jan 17, 2017): I'm trying to add the directory location as a whitelist directory but Firejail says _Error: invalid whitelist path /usr/lib/firefox-dev_. Any idea about what I could do? I think whitelisting this directory will fix the other issues for me.

gitea-mirror commented

2026-05-05 06:31:26 -06:00

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@manatarms commented on GitHub (Jan 20, 2017):

Managed to fix this by moving my FF folder to /opt. I then whitelisted the opt/firefox-dev folder in firefox.profile . Works fine now.

@manatarms commented on GitHub (Jan 20, 2017): Managed to fix this by moving my FF folder to /opt. I then whitelisted the opt/firefox-dev folder in firefox.profile . Works fine now.

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Reference: github-starred/firejail#719

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