Well, my switch to Chrome didn't go well after all. It turned out that the MoJo tech team had an excellent reason for not supporting it: For some reason, when you paste text into our blog software, Chrome copies over every last bit of HTML formatting from the source document. Why? Beats me. But it doesn't really matter, because Chrome lacked so many handy features that I've gotten used to in Opera that I would have given up on it anyway. So I tried Firefox again, and so far it's been great. It had most of the features Chrome didn't, and the few it lacked could be easily added via extensions. Performance is fine, and it mostly works well with the MoJo web software.
It doesn't have a built-in email client, which is one of the Opera features I like best, but that was eliminated in the most recent Opera update anyway. Given all this, there's really not much reason to stick with a browser that's supported by nobody and that merely produces shrugs (or worse) when you complain about their site not rendering properly.
But before I make the switch permanently, I have a question for the hive mind. I don't really recall why I gave up on Firefox a couple of years ago, but my recollection is that it had gotten slow and crash-prone. Anyone have any comments on that? Has it gotten better? Or does it still tend to crash at inopportune moments?
Also: Are there any add-ons that are so fabulous I should check them out immediately?