Windows – Tweaking Firefox for Performance

firefoxwindows 7

As an avid Firefox user since it began, I've been looking to make some under the hood changes to it, in order to optimize it for speed and performance. I'd also like to limit my RAM usage with it. Are there any settings that can help this? What can be changed in about:config that affects this?

I'd also like to know if themes or anything really boost RAM usage, as they are generally very small files to download.

 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:7.0a1) Gecko/20110630 Firefox/7.0a1

I rarely open more than 10 tabs at once, usually 3 are open. I currently use the following extensions:

I sometimes load flash videos (Youtube) but mostly just use it for browsing pages, but changing the pages very quickly as I go.

Best Answer

The biggest slowdowns are rarely come from ram usage these days. The best suggestions I think of right now are as follows.

  1. Get a Flash blocker. Either Noscript or Flashblock. Personally I like no script better. It keeps flash videos from autoloading and autoplaying. Nothing kills performance like flash videos.
  2. I'd also get a password/form fill manager, like LastPass. It's so satisfying to see a form with tons of fields and with two click, it will autofill everything with your information. Cake.
  3. If you haven't already done so, up the cache size, From what I hear in the Mozilla support forums, 500 MB is a good size. Any bigger and you are wasting time just managing what's in the cache and purging it.
  4. As an aside, a clipboard ring is handy, like Clipcube. Often times I'll run into multiple links I want to open up, but I don't want to run up more than 30 or so tabs. I can copy each one and Clipcube keeps them in a list I can bring up and paste them into firefox at my own pace.

Lastly, while there are other tweaks out there, I'm hesitant to really recommend any. A big part of performance is reliability. All it takes is one crash or one website not to load up completely and that kills all the time you've saved cumulatively.

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