Comment 12 for bug 1312376

(In reply to jigar shah from comment #6)
> @Botond in my config,e10s is not enabled

Yes, and your about:support explains why:

> Multiprocess Windows: 0/1 (Disabled by add-ons)

See [1] for more information about e10s and add-ons.

If you're confident that e10s doesn't break any of your add-ons (or if you don't care about potentially breaking some of your add-ons), you can force-enable e10s as described here [2].

[1] https://wiki.mozilla.org/E10s#Add-ons_Schedule
[2] https://wiki.mozilla.org/E10s#Force_Enable