Second firefox.exe appearing in Processes in Windows Task Manager...
Hi all!
I began experiencing this problem a few days ago and not sure what's causing it:
In my Windows Task Manager, there are two firefox.exe that appear under Processes (under Applications, Firefox only appears once). I've used End Process to close each of the firefox.exe that appear and the result has been peculiar. Depending on which one I End, either the window closes entirely along with all the tabs or the tab that is currently open crashes and I get the message: "Bad news first: This tab has crashed."
I've scanned my computer with AVG for viruses and everything came back clean. I also scanned it with ESET for malware and nothing was found.
Any idea what I can do to resolve this? Any help would be appreciated.
Chosen solution
You're probably seeing the new Multi-process feature in Firefox.
Multi-process Firefox codenamed "e10s". https://wiki.mozilla.org/Firefox/multiprocess
Started with Firefox 48 for a very small percentage of users who had noi extensions installed; expanded in Firefox 49 to a slightly larger group of users; further expansion in Firefox 50. Automatically disabled when too many extensions installed are detected and when extensions that don't yet support e10s are detected.
Extension compatibility for the most popular extensions which are hosted at AMO are listed here: http://arewee10syet.com/
To disable multiprocess:
Type about:config into the address bar, press Enter, accept the warning. Out this in the Search field at the top browser.tabs.remote.autostart . Double-click that preference in the reduced listing that is below the Search field to toggle the 'Value' from True to False.
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Chosen Solution
You're probably seeing the new Multi-process feature in Firefox.
Multi-process Firefox codenamed "e10s". https://wiki.mozilla.org/Firefox/multiprocess
Started with Firefox 48 for a very small percentage of users who had noi extensions installed; expanded in Firefox 49 to a slightly larger group of users; further expansion in Firefox 50. Automatically disabled when too many extensions installed are detected and when extensions that don't yet support e10s are detected.
Extension compatibility for the most popular extensions which are hosted at AMO are listed here: http://arewee10syet.com/
To disable multiprocess:
Type about:config into the address bar, press Enter, accept the warning. Out this in the Search field at the top browser.tabs.remote.autostart . Double-click that preference in the reduced listing that is below the Search field to toggle the 'Value' from True to False.
Thanks very much! That solved the issue. :)
The property name is now suffixed with a '2' but I was able to achieve the same...hope they dont slyly slip in a '3' in a few weeks ! I was shocked too seeing a second process...WTF
The biggest reason for my jump back from Chrome was the fact that FF is unashamed to show the memory consumption (and in a single freakin process - I dont care about crashes) while Chrome tries every which way to avoid it us seeing it, also killing this property viewing in about:memory.