Follow these simple steps to get your Firefox memory usage under control.
These configuration changes are a trade-off between internet browsing speed and memory usage. They are most useful if you are multitasking and need Firefox to be less of a memory hog while using other applications.
Type “about:config” into your address bar to access the hidden configuration options for Firefox.
Controls how much memory is used to cache pages.
Right click on the page and choose New then Integer and create an integer called browser.cache.memory.capacity and set it to a low number. This controls how many kilobytes of memory are used for the browser’s cache.
NOTE: number in screenshot is too small. Aim for 80% of whatever the default is.
Controls how much disk space is used to cache pages in kilobytes.
Set browser.cache.disk.capacity to between 5000 or 15000.
128MB to 512M -> 5000.
512BM to 1GB of RAM -> use 15000
#4: config.trim_on_minimize (optional)
Configure Firefox to swap memory to disk when minimized. This will make Firefox less responsive if you minimize/maximize a lot, but it is good if you need to free memory while multi-tasking to other applications.
Right click on the page and choose New then Boolean and create a boolean called config.trim_on_minimize and set it to true. Now when you minimize the window it will free up memory.
Network link prefetch will download all pages with the rel=”prefetch” tag. This uses up more memory than you would otherwise think.
Set network.prefetch-next to false.
This controls how many pages of history are kept in the back/forward buttons. Lower the value to something acceptable. If you do not use back/forward often then you can set this very low.
Set browser.sessionhistory.max_total_viewers to a low number.
What it is, yo? It's a hot key sequence for Firefox to prevent you from getting busted while searching hotness at work.Posted on 3/8 3:18 PM | IP: Logged
From: I don't remember where I found this:
PaNIC is set to be activated by the Alt key and the tick ` symbol up there by the 1 on your keyboard.
Press those two buttons at the same time, and all of your tabs in Firefox will get killed instantly, and replaced with a Google search for “increasing workplace productivity”.
You can edit the hot keys and web page address via the extension’s preferences menu.
NOTE: If you are using StumbleUpon (which I highly recommend), you’ll have to change the keystroke. StumbleUpon uses Alt-` as a hot key for the Stumble! button. (Firefox >> Tools >> Add-ons >> Productivity and Networking Information Component >> Options)
I recommend changing the URL to a work-related search and the modifier to Ctrl-`. You could even change the URL to go to your Intranet homepage, specific documentation, etc. download it here.
Also - 3 more helpful extensions:
HideBad (careful with this though - check the settings bc it will erase EVERYTHING including saved passwords if you aren't careful.)