Can you tell us what exactly you don't like about the new interface? More than likely you can change it back using the customize dialog...

I don't like the little icon images next to the bookmarks in the bookmark bar. They take up too much room and it looks messy. I want to go back to the old version too. Or I want to know who to remove all those icons. For example, I have hotmail bookmarked so there is a little Mircrosoft icon next to it. How do I removes those?

I don't like the bookmark format, don't like the general format, I like the old personalization themes much better. Just don't like the structure and if I am not able to go back to v.3.6 will go back to using IE. Have not been able to find the old version anywhere online so doesn't look like that option is available. Thx!

Please I have the same problem. I can not launch the new version. I just want to go back to my previus version.

For everyone who is looking for the older version of Firefox, it's availible here: http://www.mozilla.com/en-US/firefox/all-older.html

@nero14 Here's an addon to to fix your problem: https://addons.mozilla.org/en-us/firefox/addon/bookmarks-deiconizer/

@freesia403 This article tells how to restore the interface to look like 3.6: http://blog.fligtar.com/2011/01/16/how-to-customize-firefox-4s-ui/

1. Lost the add on that worked with my Kaspersky Internet Security 2. Lost the ability to have my Hotmail IDs stored so I don't have to type them in each time I try to access accounts. (Apparently the same happens on other websites where I was "remembered" or recognized and had my ID and password filled in automatically. Now I have to manually go to my password lists and type in each one.) 3. When we right click to open a new tab, whose bright idea was it to switch the "new tab" option with the "new window" option so what has been an automatic movement of the cursor now opens dozens of unwanted windows? 4. Layout of the page is cumbersome - I don't want the Google bar up there at all but if I delete it, I lose the icons for refreshing the page, surfing back and forward, and accessing my home page. If I leave that up there, the top inch and a half on my laptop is toolbars and tab titles.

ALL IN ALL, FIREFOX 3 WORKED GREAT JUST NEEDED SOME TWEAKING OF THE FUNDAMENTALS (LIKE NOT CRASHING) WITHOUT ALL THIS COSMETIC CHANGE AND WITHOUT ROBBING US OF THE CONVENIENCES VERSION 3 OFFERED WHILE ADDING OTHERS.