Full list of Mozilla Firefox Hacks for Browser and Addons

These are a few of my favourite hacks for Mozilla Firefox 3 all of these will be saved in the prefs.js file and can be altered either using the about:config method in the browser or by using a combination of the Edit my Config extension XPI and the Yaldex Software Free JavaScript Editor
always make sure that you create a BUP first before any changes.

browser.cache.disk.capacity » 150000
browser.cache.memory.capacity » 150000
This will set the maximum disk space and memory for the browser's cache to ~150Mb

browser.cache.offline.capacity » 20480
browser.cache.memory.enable » false
Forcing Firefox to disable the cache but also to keep it self-contained.
(this will make pages that you visit often to be slow and stay slow, though so be careful)

browser.download.manager.closeWhenDone » true
browser.search.openintab » true
So that the searches from the search bar go into a new tab instead of the current one.
browser.tabs.loadDivertedInBackground » true
This forces Firefox to open new links in the background so that it doesn't steal focus from the page I am still trying to read!
browser.tabs.opentabfor.middleclick » false
browser.tabs.tabMinWidthset » 0
Disables tab scrolling, otherwise you can set it to the minimum allowable width of a tab (in pixels) before tab scrolling comes in.
browser.urlbar.hideGoButton » true
To remove that Go button you never use anyway.
browser.urlbar.maxRichResults » 5
browser.urlbar.autoFill » true
This will enable auto-completion.

browser.sessionstore.max_tabs_undo » 1
The higher the number the higher the memory, so I set this to 1 because I still seem to close tabs accidentally, but usually only 1

browser.sessionhistory.max_total_viewers » 1
This determines how many web pages to store in the cache.
Setting to 0 saves about 4Mb of cache per page, but slows things down for back/forward operations.
content.notify.backoffcount » 5
plugin.expose_full_path » true
ui.submenuDelay » 0

content.max.tokenizing.time » 2250000
content.notify.interval » 750000
content.notify.ontimer » true
content.switch.threshold » 750000

zoom.maxPercent -> 400 for the ability to zoom closer
zoom.minPercent -> 10 will let you can zoom out further
browser.zoom.full -> false for Firefox 2-like text zooming only
browser.zoom.siteSpecific -> false Removes site-specific zoom settings
toolkit.zoomManager.zoomValues -> You can change zoom levels here


network.http.pipelining » true
network.http.proxy.pipelining » true
Allows for the use of proxy HTTP/1.1 pipelining.
network.http.pipelining.maxrequests » 8 (max 30)
Firefox can make more simultaneous connections for faster downloading
network.prefetch-next » false
network.http.max-connections » 48
network.http.max-connections-per-server » 16
network.http.max-persistent-connections-per-proxy » 8
network.http.max-persistent-connections-per-server » 8
nglayout.initialpaint.delay » 0
Firefox starts to render a page immediately (defaults to 250ms).

layout.word_select.eat_space_to_next_word » false
So that when you double-click on a word to select it, Firefox does not select the space to the right of that
word

extensions.checkCompatibility -> false
extensions.checkCompatibility.3.6 -> false
local_install.extensions.checkCompatibility -> false
extensions.checkUpdateSecurity -> false


extensions.getAddons.showPane -> false Removes add-ons search
browser.cache.offline.capacity -> 20480 Increase offline cache