Howard:
Welcome to Avast! Techie and I have only been messing around with SuSe and Avast for Linux for a very short period and Dublin is the Avast staff behind the development of Avast for Linux.
Techie:
I installed Firefox 1.5 and had some problems with it on SuSe. Same thing with upgrading to KDE 3.5. I ended up going back to Firefox 1.07 and KDE 3.4. From now on I am going to wait until an upgrade is available through YOU, which is the online update portion of YaST. Or at least check out the SuSe forums to see what others are posting about particular upgrades.
Also, have you checked out the following link for installing plugins for Firefox?
http://www.thejemreport.com/mambo/content/view/178/42/If not, I have found that the kaffeine plugin doesn't play apple movie trailers so I avoided it. Also, skipped the RealPlayer portion. Instead, I have substituted with Mplayer and the mozilla MPlayer plugin for video and sound media. I believe both of them show up through one of the recommended install sources in the article..