If you want to change the toolbars back, you can. If you have the orange Firefox button, tap the Alt key (or press F10), then View > Toolbars > Menu Bar Using View > Toolbars, you can restore the other toolbars and or customize the buttons to other locations. Or I think someone created an add-on to bring back the previous look. ''Here's the process to roll back if you really prefer that:'' First, I recommend backing up your Firefox settings in case something goes wrong. See [https://support.mozilla.com/en-US/kb/Backing+up+your+information Backing up your information]. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.) Next, download and save Firefox 3.6 to your desktop for future installation. http://www.mozilla.com/firefox/all-older Close Firefox 4. You could install Firefox 3.6 over it (many have reported success) or you could uninstall Firefox first. If you uninstall, do not remove your personal data and settings, just the program. Unless you have installed an incompatible add-on, Firefox 3.6 should pick up where you left off. If there are serious issues, please post back with details. Note: I haven't actually tried this myself!