I like Firefox but it’s not as fast as it used to be.

This is a comprehensive, safe guide to optimizing Firefox 3.5 for speedy browsing.

For each suggestion, your mileage may vary.Before you proceed, create a new profile.

Gboard’s editing mode on an Android phone.

Quit Firefox, run “firefox.exe “profilemanager”, and create a new profile to experiment on.

Use the new profile as your default only if your performance improves.

Only those changes needed from a default installation are mentioned in this guide.

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Use Blank Homepage, Default Theme, Minimal Extensions

Set your homepagetoabout:blank.

Use only must-have extensions with the default theme.

UseAdblock Plusand Flashblock toblock unwantedads and Flash.

OptionsMain

exit the download window automatically when all downloads are finished.

Turn off download history inOptions->Privacy,Custom prefs for history.

InOptions->Privacy, useCustom options for history, and reduce length of remembered history to 15 days.

OptionsApplications

Customize General Advanced Options

InOptions->Advanced->General->Accessibility:

7.

Clean them up using theCheckPlacesFirefox extension, and uninstall after you’re done.

Firefox checksLive Bookmarksevery hour for updates.

OptionsAdvNetwork

Use a dedicated RSS Reader likeGoogle Readerinstead.

Delete the presetLatest HeadlinesLive Bookmark.

Enterabout:configin the Firefox address bar in an empty tab.

OptionsPrivacy

Click " I’ll be careful, I promise!'.

Also, entries you change are displayed in bold, and can be reset using the right-click context-menu.

(Some of these tips are via TweakguidesFirefox Tweak Guide)

OptionsAdvGeneral

ManageSearchEngines

AboutConfig