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multiprocess windows turned off

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  • Last reply by cor-el

Multiprocess Windows is off. Says "0/2 (Disabled by add-ons)"

Browers.tabs.remote are both set to true

How do I find out which add-on is the problem? Turn all off and adding back in one a time, restarting, rechecking, is way too complicated. If FF knows an add-on turned off multiprocess, it should know which one, right? Thx. Windows 7, 64-bit, quad processor

Multiprocess Windows is off. Says "0/2 (Disabled by add-ons)" Browers.tabs.remote are both set to true How do I find out which add-on is the problem? Turn all off and adding back in one a time, restarting, rechecking, is way too complicated. If FF knows an add-on turned off multiprocess, it should know which one, right? Thx. Windows 7, 64-bit, quad processor

All Replies (3)

Maybe check the extensions.json file in the profile folder to check compatibility info (multiprocessCompatible) for each extension.

You can use the builtin JSON viewer and drag the file in a tab or the Scratchpad (Pretty Print) to inspect the file.


You can use the about:profiles page to find the location of the profile in "AppData\Roaming".

The builtin viewer should launch automatically when you drag a file with a .json file extension in a tab provided that devtools.jsonview.enabled is set to true on the about:config page.