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Please help me find source of problem. Firefox not working with certain sites.

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I am having problems with certain websites. They basically become frozen tabs and all I can do is close.

Things I have already tried: New profile Refresh Clean install Safe Mode Hardware Acceleration Cleaning cache and cookies Changing the Places.sqlite file to a new one Ran Adwcleaner

I'm starting to think it has nothing to do with Firefox. Everything seems to be up to date. I have Windows 10 and a Graphics Chipset Radeon (TM) R7 M445.

Things I have noticed:

When I open task manager I notice I have multiple sessions running...more than the tabs I have open. Is there a way to limit sessions to what I have tabs for?

I hit Ctrl + Shift + E and switch to performance. When I record performance while visiting these sites my FPS drops tremendously. Some of these sites are unrelated to Youtube. Gmail is another site I have the large FPS drop.

I am having problems with certain websites. They basically become frozen tabs and all I can do is close. Things I have already tried: New profile Refresh Clean install Safe Mode Hardware Acceleration Cleaning cache and cookies Changing the Places.sqlite file to a new one Ran Adwcleaner I'm starting to think it has nothing to do with Firefox. Everything seems to be up to date. I have Windows 10 and a Graphics Chipset Radeon (TM) R7 M445. Things I have noticed: When I open task manager I notice I have multiple sessions running...more than the tabs I have open. Is there a way to limit sessions to what I have tabs for? I hit Ctrl + Shift + E and switch to performance. When I record performance while visiting these sites my FPS drops tremendously. Some of these sites are unrelated to Youtube. Gmail is another site I have the large FPS drop.

Chosen solution

I'm not sure what happened but the last update seems to have patched things and now those sites work fine. I also changed settings on my own laptop so I'm not sure which was the trick to fixing it.

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Chosen Solution

I'm not sure what happened but the last update seems to have patched things and now those sites work fine. I also changed settings on my own laptop so I'm not sure which was the trick to fixing it.