nanotube said: no it shouldn't, because the packages come from different repositories and have different names. the 3.5 updates are completely harmless, just let them do their thing.
if you have really strong feelings about it, you can go in synaptic, find the firefox-3.5 package, and 'freeze' it at the version it's at...
or you can uninstall ff3.5 package completely.
but it's easiest to just let it be. :)
well, i dont know if i want updates for a version of a program i'm not using, so i guess i could just take it out of the repo list right? anyway, that's what i'm doing now, and it doesn't appear to give me anymore notifications about FF3.5 updates anymore... thanx
hope the op has the same luck