Description of problem:
When Firefox is started automatically as part of a KDE 4 login (because it was open when the user shut the machine down) it is unable to find any plugins.
Version-Release number of selected component (if applicable):
Repeatable every time
Steps to Reproduce:
1.Open Firefox on an FC10 KDE install.
2.Open several tabs on websites then shut the machine down.
3.Restart the machine then log back in.
4.Type about:plugins into the address bar of the FF instance that automatically loads.
5.Visit a (for example) Flash enabled site to verify Flash isn't present.
6.Close FF (hitting the option to save and quit.
7.Open FF again.
8.Type about:plugins into the address bar
The first about:plugins (step 4) says that there are no plugins installed and the Flash site loaded in step 5 will show the "additional plugins required" message. The second about:plugins shows the correct plugin load and all the sites load and display correctly.
Plugins should be found at step 4.
I also had this problem on FC9.
Pretty much a dup of F-9's bug #437596 (I'll leave it to ff's maintainers to keep a separate F-10 bug open or mark the dup).
See also upstream bugs:
fact is, currently, ff's and kde4's notions of session management is incompatible.
Best/only recommendation for now is to avoid the keeping ff open on logout/shutdown.
*** This bug has been marked as a duplicate of bug 437596 ***