I've been singing the praises of Firefox for many, many moons now, but I gotta say I'm unimpressed with version 1.5
I downloaded and installed it yesterday, and though the initial installation went without a hitch, (I didn't lose any bookmarks), the theme I was using no longer works properly, and I can't find a similar one that I like.
Original theme was 'Saferfox Xpanded' and I loved the look of it. Latest version of this theme is similar, but my Bookmarks Toolbar Folder now takes two mouse-clicks to open instead of one. (and I lost the little icons that were associated with the individual websites)
Tried Acid Burn, and loved the presentation, until I tried to open Options. I only see three buttons towards the bottom of the screen, and no way to change any of the options. So, can't stick with Acid Burn.
Finally settled on ifox, which I find a bit similar to the Saferfox Xpanded, but again I have lost the little icons that went with the individual bookmarks.
Oh, and I really don't like the 'hip' way they have of displaying the information in Options now. It used to be a pretty simple affair, click on the item on the left and it opens the applicable menu to the right. Now, it's structured horizontally instead of vertically for the main tabs and seems more cluttered and confusing.
I'll stick with Firefox for now, but if something better comes along, I'm outta here!
RayG