#52: My computer is slow! Firefox is a CPU/resource hog!

I'm on OS X 10.5 running FF 3


The reference probably mentions this, but do you have Firebug running? It can really kill performance. You should disable it by default for all sites and turn it on piecemeal.

Try 3.5

You could try upgrading to 3.5. It's runs JS much faster, and seems to handle more tabs a bit better.

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Problematic extensions - MozillaZine Knowledge Base

http://kb.mozillazine.org/Problematic_extensions - found by Unknown_user_icon k7lim on June 05, 2009, 11:16 AM UTC

This is a list of extensions that can slow down or cause problems in firefox

Tags: mozillazine list firefox extensions