I can tell you for sure that IE6 is not supported for editing and never will be.

Other than that, I haven't heard anything specific about any other modern generation browser having problems.

I know for a fact that editing works in IE7, IE8, Firefox, and Chrome.

Thanks for the reply, Lucas. I'm assuming there is a certain set of browsers against which the C5 editing facilities are tested, and I'm guessing those are the only ones officially “supported”. If, for instance, someone were to note that some aspect of C5 editing didn't work with the latest version of Opera, would that issue be addressed? Are the editing requirements _any_ contemporary standards-compliant browser or only certain ones?

-Steve

i believe the only browser that was blacklisted was IE6

im pretty sure it doesn't work on iphone or ipod touch, probably not blackberry or android either

I'm able to use Opera Mobile 10 on a Nokia Smart Phone (E-63) to update my websites. Not ideal but works in a pinch.
For instance, i'm using my phone right now to post this reply.