I downloaded Firefox 4 for my Mac running MacOS 10.4.11 and replaced my older version (because I didn't understand the meaning of the barred circle) and now cannot use Firefox at all. How do I get the older version back?
When I try to open FF4 I get the message it can't be opened because it is not supported on my architecture. I can't believe no-one else has had this problem. You must have a lot of internet duffers who don't really know what they're doing. I need to get my old version of FF back if I'm going to run it on my computer. I don't understand why an app as widely used as this doesn't have a pre-app that assesses whether one has the architecture to run a new version. You advertisement merely said OS 10, and "all systems". It did not specify a newer MacOS than my 10.4.11. Now I seem to be out of luck and will just use Safari.
Alla svar (2)
Firefox 4 requires at least OS X 10.5 and an Intel Mac. There is a third party version of Firefox 4 that runs on OS X 10.4/10.5 and PPC Macs, for details see http://www.floodgap.com/software/tenfourfox
If you prefer, you can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html
Thank you TonyE, that did indeed solve my problem. Still, unless folks like me with pre-Intel Macs (or users of non-supported versions of Windows) are a tiny minority of the total user universe, it would seem easy enough to give us a footnote of systems supported (as the FF4 page appears to do, although only languages are listed, not systems) so we don't download only find we can no longer run the app. Course, now I know what that barred circle means (had the same experience with Skype, duh), I'll stop before clicking.