In
Firefox 3, a script is only given 10 seconds to respond, after which it
will issue a unresponsive script warning. If you are hooked on a slow
network connection, you might want to increase the script execution
time via dom.max_script_run_time to cut down on the frequency of the no script warning.
Config name: dom.max_script_run_time
Default:10 (in secs)
Modified value: 20, or any values greater than 10
9) Handling JavaScript Popups:
When
you come across a site that executes a javascript open new window
function, and if the popup window is without all the usual window
features, i.e. back/forward/reload buttons, status bar etc, Firefox
will automatically treat it as a popup and will not open it as a new
tab. However, if you find this to be a nuisance and wanted to open all
new windows in a new tabs, you can specify it via the browser.link.open_newwindow.restriction setting.
Config name: browser.link.open_newwindow.restriction
Default: 2
– Open all JavaScript windows the same way as you have Firefox handle
new windows unless the JavaScript call specifies how to display the
windowModified values:
- 0 – open all links as how you have Firefox handle new windows
- 1 – do not open any new windows
- 2- open all links as how you have Firefox handle new windows unless the Javascript specify how to display the window
10) Enable Spell Checking In All Text Fields :
The
default spell checking function only checks for multi-line text boxes.
You can get it to spell-check for single line text box as well.
Config name: layout.spellcheckDefault
Default: 1 (spell checker for multi-lines text boxes only)
Modified values:
- 0 – disable the spell checker
- 2 – enable the spell checker for all text boxes
11) Open Search Box Results In New Tab:
When
you search using the search box at the top right hand corner of the
browser, it will display the search results in the current tab. If you
don’t want the search to interfere with your current tab, you can tweak
the browser.search.openintab to make it open in a new tab.
Config Name: browser.search.openintabDefault: False
Modified value: True (open search box results in new tab)
12) Lower The Physical Memory Used When Minimized:
This
tweak is mainly for Windows users. When you minimize Firefox, it will
send Firefox to your virtual memory and free up your physical memory
for other programs to use. Firefox will reduce its physical memory
usage, when minimized, to approximately 10MB (give or take some) and
when you maximize Firefox it will take back the memory that it needs.
The preference name does not exist and needs to be created.
Right click on the background and select New->Boolean.
Enter the name when prompted: config.trim_on_minimize
Enter the values: True
13) Speed up your Firefox:
Several tweaks required for this
Config name: network.http.pipelining
Default: False
Modified value: True
Config name: network.http.proxy.pipelining
Default: False
Modified value: True
Config name: network.http.pipelining.maxrequestsDefault: 4
Modified value: any value higher than 4, but not more than 8
Config name: network.http.max-connections
Default: 30
Modified value: 96
Config name: network.http.max-connections-per-server
Default: 15
Modified value: 32
14) Increase/Decrease the Amount of Disk Cache:
When
a page is loaded, Firefox will cache it into the hard disk so that it
doesn’t need to be download again for redisplaying. The bigger the
storage size you cater for Firefox, the more pages it can cache.
Before you increase the disk cache size, make sure that browser.cache.disk.enablebrowser.cache.disk.enable is set to True.
Config name: browser.cache.disk.capacity
Default: 50000 (in KB)
Modified value:
- 0 – disable disk caching
- any value lower than 50000 reduces the disk cache
- any value higher than 50000 increases the disk cache.
15) Select all text when click on the URL bar:
In
Windows and Mac, Firefox highlights all text when you click on the URL
bar. In Linux, it does not select all the text. Instead, it places the
cursor at the insertion point. Regardless which platform you are using,
you can now tweak it to either select all or place cursor at insertion point.
Config name: browser.urlbar.clickSelectsAll
Modified value:
- False – place cursor at insertion point
- True – select all text on click
16) Autofill Address in URL Bar:
Other than the smart location feature, you can also get your URL bar to autofill the address as you type the URL.
Config name: browser.urlbar.autofill
Default: False
Modified value: True (Have Firefox autofill the address as you type in the URL bar)
17) Same Zoom Level For Every Site:
Firefox
remembers your zoom preference for each site and set it to your
preferences whenever you load the page. If you want the zoom level to
be consistent from site to site, you can toggle the value of browser.zoom.siteSpecific from True to False.
Config name: browser.zoom.siteSpecific
Default: True
Modified value: False (enable same zoom preferences for every sites)
18) Setting your zoom limit:
If
you find that the max/min zoom level is still not sufficient for your
viewing, you can change the zoom limit to suit your viewing habits.
Config name: zoom.maxPercent
Default: 300 (percent)
Modified value: any value higher than 300
Config name: zoom.minPercent
Default: 30 (percent)value: any value
19) Configure Your Backspace Button:
In Firefox, you can set your backspace to better use by getting it to either go back to theprevious page or act as page up function.
Config name: browser.backspace_action
Default: 2 (does nothing)
Modified value:
- 0 – go back previous page
- 1- page up
20) Increase Offline Cache:
If
you do not have access to Internet most of the time, you might want to
increase the offline cache so that you can continue to work offline. By
default, Firefox 3 caches 500MB of data from supported offline Web
apps. You can change that value to whatever amount of your choice.
Config name: browser.cache.offline.capacity
Default: 512000 (in KB)
Modified value: any value higher than 512000 will increase the cache value
21) Auto Export Firefox 3 bookmarks to bookmarks.html:
Unlike the previous version, Firefox 3 backup the bookmarks file in places.sqlite rather than the usual bookmarks.html. Since bookmarks.html allows
us to export and sync our bookmarks with other browser, it will be very
useful if Firefox 3 can backup the bookmark to the bookmarks.html as well.
Config name: browser.bookmarks.autoExportHTML
Default: False
Modified value: True (auto export bookmarks file to bookmarks.html)
22) Disable Extension Compatibility Checks:
This
is useful if you want to use an extension that is not supported by your
version of Firefox badly. It is not recommended, but you can still do
it at your own risk.
Right click and select New->Boolean. Enter extensions.checkCompatibility in the field. EnterFalse in the next field.
Right click again and select New->Boolean. Enter extensions.checkUpdateSecurity into the field and enter False into the next field.
23) Disable Delay Time When Installing Add-on:
Everytime
you wanted to install a Firefox add-on, you will have to wait for
several secs before the actual installation starts. If you are tired of
waiting, you can turn the functionsecurity.dialog_enable_delay off so that the installation will start immediately upon clicking.
Config name: security.dialog_enable_delay
Default: 2000 (in msec)
Modified value:
- 0 – start installation immediately
- any other value (in msec)
24) View Source in Your Favorite Editor:
This is very useful for developers who are always using the ‘view source‘ function. This tweak allows you to view the source code in an external editor.There are two configuration need to be made:
Config name: view_source.editor.external
Default: False
Modified value: True ( enable view source using external text editor)
Config name: view_source.editor.path
Default: blank
Modified value: insert the file path to your editor here.
25) Increasing ‘Save Link As‘ timeout value:
When you right click and select the ‘Save Link As…‘,
the browser will request the content disposition header from the URL so
as to determine the filename. If the URL did not deliver the header
within 1 sec, Firefox will issue a timeout value. This could happen
very frequently in a slow network connection environment. To prevent
this issue from happening frequently, you can increase the timeout
value so as to reduce the possibility of a timeout.
Config name: Browser.download.saveLinkAsFilenameTimeout
Default: 1000 (1 sec)
Modified value: any value higher than 1000 (value is in msec)
26) Animate Fullscreen Toolbar Collapse mode:
In
Firefox’s fullscreen mode, toolbars and the tab strip are hidden at the
top of the screen and only shown on mouseover. To draw attention to
this, there is an animation of the toolbar sliding upwards and
off-screen when fullscreen mode is toggled on. For performance issue,
the animation of the collapse of the toolbar only appear for the first
time. For some reason that you may love/hate the animation, you can
adjust Browser.fullscreen.animateUp to switch it on/off for every collapse.
Config name: Browser.fullscreen.animateUp
Default: 1 (animate the toolbar collapse only the first time)
Modified value:
- 0 -disable the animation
- 2- enable the animation for every collapse
27) Autohide Toolbar in Fullscreen mode:
In
fullscreen mode, the toolbar is set to autohide and appear upon
mouseover. If you have a need to view the toolbar at all time, you can
toggle the value of browser.fullscreen.autohide toFalse to always show the toolbar.
Config name: browser.fullscreen.autohide
Default: True (always autohide)
Modified value: False (always show the toolbar)
28) Increase Add-On search result:
If you go to Tools->Add-ons->Get Add-ons and
perform a search there, Firefox will only fetch and display 5 matching
results. If you want Firefox to show more than 5 results (say 10), you
can adjust extensions.getAddons.maxResults to get it to display more results.
Config name: extensions.getAddons.maxResults
Default: 5
Modified value: any value more than
If you have any tricks not listed here, please add it in the comment.
Yeah its your Browser Cache.It’s a matter of just finding the right file ,renaming and using it.
