Comment 23 for bug 1940417

(In reply to Jeroen from comment #6)
> (In reply to Olivier Tilloy from comment #4)
> > Could this be https://bugzilla.mozilla.org/show_bug.cgi?id=1719898 ?
> >
> > Jeroen, thanks for the report. Can you also observe the problem with upstream builds of firefox (downloaded from https://www.mozilla.org/firefox/download/thanks), or is it specific to the Ubuntu package?
>
> I haven't checked upstream or nightly builds yet, ususally I stay with release updates only.

I understand you want to stay with release updates only. You can download an upstream release build, unpack it in a temporary folder and run it just for the purpose of testing this one bug. It will by default create a separate profile, so that won't mess with your normal setup. And it would be very useful to confirm whether the bug is indeed an upstream issue, or Ubuntu-specific.