Simple Firefox optimizations that really matter

firefox logoMozilla Firefox is primary browser I use with my Ubuntu Gutsy but like any software it has benefits in line with drawbacks. Of course there are more benefits in Firefox (I really think so) but here are several tips that would help to improve Firefox’ performance and make it working even better. These tips were found at Zepy (nice site I must say 🙂 ) and you can read them in details here.

Fetch only pages that you click (disable links prefetching): Type “about:config” at the address bar and hit return. Then enter “network.prefetch” or “network.prefetch-next” in the filter field and make it FALSE.

Limit the RAM usage (really makes sense for me): Type “about:config” at the address bar and hit return. Filter up your search after “browser.cache” and select “browser.cache.memory.capacity” from the remaining options (if there is no such item you can create it) and put desirable value in KB. For example to set limit of 128 MB you should put 6144 (please follow table below to get proper value). Quick note: browser.cache.memory.enable must be TRUE for this preference to take effect.

Physical RAM Memory Cache (in KB)
32 MB 2048
64 MB 4096
128 MB 6144
256 MB 10240
512 MB 14336
1 GB 18432
2 GB 24576
4 GB 30720
8 GB and up 32768
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Stefan Durand

My name is Stefan, I'm the admin of LinuxScrew. I am a full-time Linux/Unix sysadmin, a hobby Python programmer, and a part-time blogger. I post useful guides, tips, and tutorials on common Linux and Programming issues. Feel free to reach out in the comment section.

2 thoughts on “Simple Firefox optimizations that really matter”

  1. “Filter up your search after “browser.cache” and select “browser.cache.memory.capacity” from the remaining options”

    and then… ?

    select it and then what should ya do?

    “(if there is no such item you can create it)”

    Yes but, what kind of data should ya expect? binary? boolean? string?

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