multiprocess windows turned off
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
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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".
- Help -> Troubleshooting Information -> Profile Directory:
Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder - http://kb.mozillazine.org/Profile_folder_-_Firefox
So how do I launch the viewer?
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.