Just "upgraded" to FF 3.5.2. from 3.0.13 or something like that I believe. Nothing but problems since, downloading doesn't work, tabs are just spinning without updating, crashed 2 times in 20 minutes etc.
Can anyone please tell how to downgrade the portable version?
Just install the old version over the new one. It shouldn't stop you. And they both use the same folder name by default, so it should be pretty straightforward.
Not sure how the actual profile will take it. The profile can be upgraded, I know that, but I don't know how it'll go, the other way. Give it a shot.
It's probably caused by an extension or extensions that you have. Try disabling extensions, or start in safe mode (FirefoxPortable.exe -safe-mode) and see if that works. You may need to delete your Data directory from FirefoxPortable to start with a fresh profile.
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