*** This bug is a duplicate of bug 1627808 ***
https://bugs.launchpad.net/bugs/1627808
With Firefox 53.0 and 17.04 this is still happening. Only solution was
to disable the "Ubuntu Modifications" extension. This is really
unfortunate, as the default behavior for all new Ubuntu installations is
for multi-processing to be disabled, which makes browsing slower and
less responsive.
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https://bugs.launchpad.net/bugs/1627290
Title:
Firefox 49+ multiprocess windows feature (e10s) is disabled by ubufox
Status in ubufox package in Ubuntu:
Confirmed
Bug description:
Firefox 49+ enables e10s by default:
https://wiki.mozilla.org/Electrolysis
But Ubuntu's "Ubuntu Modifications 3.2" extension disables it. In
about:support output it says:
"Multiprocess Windows 0/1 (Disabled by add-ons)"
If we manually disable "Ubuntu Modifications" extension, it works:
"Multiprocess Windows 1/1 (Enabled by default)"
I am using Xubuntu 16.04, firefox 49.0+build4-0ubuntu0.16.04.1,
xul-ext-ubufox 3.2-0ubuntu1.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubufox/+bug/1627290/+subscriptions
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