Firefox can consume a heavy amount of memory and slow down your system. Here is some tips to reduce the memory usage of Firefox.
Tip 1: Check the memory usage
To get some info about memory usage type about:cache?device=memory into the address bar and hit Enter.
Tip 2:
Keep your number of open tabs and windows to a minimum.
Tip 3: Use less extension and themes
Uninstall all Firefox extensions and themes that you don’t use. If you think that you might still need the extension in future but not using it currently, at least there’s an option to Disable it. Use only extensions that you usually use to cut down memory usage.
Tip 4: Tweak some configuration values
In about:config set the value of
- browser.sessionhistory.max_entries from 50 to lower value eg: 10 for reducing the browsers session history;
- browser.cache.memory.enable to true and
- browser.cache.memory.capacity to 4096 for 4MB for 4MB fixed memory cache;
- config.trim_on_minimize to true for release memory at minimizing the window (create config.trim_on_minimize if not exists as boolean);