You can move menu items around by using the Menu Editor add-on. You can also make fireofx 4 look like Firefox 3.6, for details see http://www.computertechtips.net/64/make-firefox-4-look-like-ff-3-6

This article may help with the video problem - Fix common audio and video issues

If you prefer to downgrade to Firefox 3.6 first uninstall Firefox 4, but do not select the option to "Remove my Firefox personal data". If you select that option it will delete your bookmarks, passwords and other user data.

You can then install the latest version of Firefox 3.6 available from http://www.mozilla.com/en-US/firefox/all-older.html - it will automatically use your current bookmarks, passwords etc.

To avoid possible problems with downgrading, I recommend going to your profile folder and deleting the following files if they exist - extensions.cache, extensions.rdf, extensions.ini, extensions.sqlite and localstore.rdf. Deleting these files will force Firefox to rebuild the list of installed extensions, checking their compatibility, and reset toolbar customizations.

For details of how to find your profile folder see https://support.mozilla.com/kb/Profiles

i would hate to have to download an addon just to put some thing where it should have been in the first place.... and i don't want to have to download a ton of addons. i have adobe and addbocker... that is all i want right now.

i have installed the 3.6 version and for the most part every thing is back to normal.... except it is REALLY SLOW now.... what did you guys slow down 3.6 to make 4 SEEM FASTER!?... this is B.S.

you guys are starting to act like microsoft... putting out junk products and trying to force people to upgrade... if i can find another browser with add blocker im switching for sure.

Official Old Version Release http://www.mozilla.com/en-US/firefox/all-older.html

Unofficial site removed and not needed as all past old releases are hosted by Mozilla if needed. Also already posted and poster already installed 3.6.17