I’m mostly a fan of the new firefox 3.5, but some of my favorite extensions haven’t been updated. Or at least they hadn’t until I updated them.
SEOpen for Firefox 3.5 – (right-click, save as, then drag into ff 3.5)
Duplicate Tab for Firefox 3.5 – (right-click, save as, then drag into ff 3.5)
Google Pagerank Status for Firefox 3.5 – (right-click, save as, then drag into ff 3.5)
Updating the extensions is really easy. I just changed one line in the install.rdf of each extension. Got one you want to update to work with firefox 3.5? Get a good extraction app like 7zip. Right click on the old xpi file and select open archive from the 7zip sub-menu. Double click the .rdf in 7zip. Change the em:maxVersion tag to >/= 3.5. Save the file, updating the archive. And reinstall the addon by dragging it into Firefox 3.5. Natch, I’ve already done that for the three addons above. So if you’re looking for updates, there you go. But it really only takes about ten seconds to update each addon by yourself… and then you don’t have to worry about grabbing files from a stranger!
What else about Firefox 3.5? Love it, except for the fact that it’s all of a sudden opening links from external apps (like Thunderbird) in new windows instead of new tabs. Really annoying. I want firefox 3.5 to open all links in new tabs. Never in a new window. Any ideas?
Dan Dreifort 
One other thing I noticed that I love about Firefox 3.5, you no longer have to click “continue” after updating extensions. Having to click after installing updates was a small annoyance – now fixed.
Dan,
Thanks for giving me back the use of SEOpen, my favorite plugin.
Much appreciated,
Alan