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Is FF consuming too much memory?

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I recently disabled Tab Mix Plus as a potential culprit in FF's ridiculous memory footprint of more than 2.5 gigs. FF was grinding to a halt over and over and crashing a lot too.

Now, even with only a handful of tabs open, and none of them even slightly content-rich, FF is still gobbling up almost 1.5 gigs. It is faster now, and not crashing yet, but this seems really high.

Is this normal for FF?

I recently disabled Tab Mix Plus as a potential culprit in FF's ridiculous memory footprint of more than 2.5 gigs. FF was grinding to a halt over and over and crashing a lot too. Now, even with only a handful of tabs open, and none of them even slightly content-rich, FF is still gobbling up almost 1.5 gigs. It is faster now, and not crashing yet, but this seems really high. Is this normal for FF?

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You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.


Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.