baggins at pld-linux.org
Wed Oct 6 09:03:38 CEST 2021
On Wed, 06 Oct 2021, Jan Palus wrote:
> On 05.10.2021 23:50, Jan Rękorajski wrote:
> > On Tue, 05 Oct 2021, Jan Rękorajski wrote:
> > > I can't figure out what the trigger was, but since recently (92+?,
> > > September?) firefox extensions started misbehaving. ex. ublock is
> > > not really blocking adds, and if I try to click its icon all I get
> > > is a single vertical line instead of the menu.
> > >
> > > So, does firefox extensions work for you? Any hints what's going on?
> > >
> > > I did try launching firefox on a clean profile, problem persists, and
> > > the same thing happens on both mozilla-firefox-bin and PLD compiled
> > > package.
> > I also did try downgrading to 91.0 and it looks the same, so, what could
> It appears to be sandbox/seccomp related so perhaps glibc just like
> chrome? Workaround:
> - install ublock
> - modify "security.sandbox.content.level" from "4" to "2"
Works up to here ;)
> - restart firefox and bring back "security.sandbox.content.level" to "4"
> - restart firefox and enjoy ublock
Bringing back to "4" breaks extensions again.
> No idea what's wrong exactly though.
According to https://wiki.mozilla.org/Security/Sandbox#Content_Levels
it's "Read access to most of the filesystem" that's problematic (yes,
"3" already breaks stuff).
Oh, well, at least there is a workaround.
Thanks a lot.
Jan Rękorajski | PLD/Linux
SysAdm | baggins<at>pld-linux.org | http://www.pld-linux.org/
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