[Bug 246790] www/firefox 77.0 fail to render most pages

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246790

Jan Beich <jbeich at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Closed
         Resolution|---                         |Not Accepted

--- Comment #15 from Jan Beich <jbeich at FreeBSD.org> ---
(In reply to Philippe Michel from comment #14)
> I tried the same test on an Ubuntu 20.04 machine since firefox 77
> just appeared on it and couldn't reproduce the problem there.

Ubuntu defines MOZILLA_OFFICIAL for telemetry[1] which disables[2] the e10s
pref. Prepending "env MOZ_FORCE_DISABLE_E10S=1" should still work.

Not a supported configuration upstream. Both fiddling with random prefs in
about:config and disabling multi-process support since Firefox 68.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1352981#c5
   
https://searchfox.org/mozilla-central/rev/baf1cd492406/toolkit/moz.configure#663
   
https://salsa.debian.org/mozilla-team/firefox/-/blob/543a3517e00ccf/debian/rules#L41
[2]
https://searchfox.org/mozilla-central/rev/baf1cd492406/toolkit/xre/nsAppRunner.cpp#5020

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