I recently upgraded to the new 1.5 beta versions of both Firefox and Thunderbird. So far, I haven’t encountered any real problems. The only thing I regret about trying the betas is that most of my extensions don’t work anymore. I’m hoping that the extension authors will update soon.
The new version of Thunderbird has added improvements to the RSS handling, so that hacks aren’t needed anymore. You can import and export feed lists in OPML format, and you can even have sub-folders now — sortof. You can add multiple feeds under a single folder. But the feeds won’t be individually selectable — the items all just intermingle together under the folder. There’s also no auto-detection of feeds, or drag-and-drop, both of which would be really good additions.
For more information about what’s new in the Firefox beta, see Simon Willison’s Firefox 1.5 Developer Highlights.
you may try a trick to make 1.0 extensions work on Firefox 1.5.
here is the link: http://www.liewcf.com/blog/archives/2005/09/make-old-extensions-work-in-firefox-15/
[...] Before you upgrade to the 1.5 beta, make sure you can live without all your extensions… Dougal Campbell mentioned that: “The only thing I regret about trying the betas is that most of my extensions don’t work anymore..” [...]
The info on the page that LcF pointed out worked great. I only have a couple of extensions that aren’t working now (ChatZilla and ListZilla). The rest seem to be working fine.
I’ve been using both for a while now, and I haven’t seen any major bugs.
Firefox 1.5b1 seems faster than the stable… or is it just because I [finally] turned on pipelining?