Just follow these simple steps to get your Firefox memory usage under control. The solution was in ”about:config” Firefox hidden configuration options.
- Get the main configuration screen by putting “about:config” in the browser’s address bar.
- Right click on the page and choose New then Integer and create an integer called “browser.cache.memory.capacity”. Set it to a low number (I use 16384 – that means 15MB). This controls how many kilobytes of memory are used for the browser’s cache.
- In the Filter of “about:config” page (top of the page) put “browser.cache.disk.capacity”. Set “browser.cache.disk.capacity” (right click – Modify) to between 5000 or 15000 (I use 15000). For example: if you have 128MB to 512M use 5000, if you have 512BM to 1GB of RAM use 15000. This controls how many kilobytes of memory are used for the browser’s cache.
- Configure Firefox to swap memory to disk when minimized. In the Filter of “about:config” page (top of the page) put “config.trim_on_minimize”, Right click on the page and choose New then Boolean and create an boolean called “config.trim_on_minimize”. Set it to true. This mean – when you minimize the firefox window it will free up memory.
- In the Filter of “about:config” page (top of the page) put “network.prefetch-next”. Set “network.prefetch-next” to false. Network link prefetch will download all pages with the rel=”prefetch” tag, with false you avoid that downloading.
- In the Filter of “about:config” page (top of the page) put “browser.sessionhistory.max_total_viewers”. Set it to low number. I set it to 6. This controls how many pages of history are kept in the back/forward buttons.
Restart Firefox and that’s it! Now, your Firefox and your computer will be much faster and you are ready for faster surfing. Enjoy!
