(using 10.2.1)
Not sure if you've done speed comparisons between using IE and Firefox, but Firefox is demonstrably faster, especially using Cognos Workspace Advanced, and Report Studio.
...as well, for users, Firefox is faster for cognos viewer, and with the unMHT plugin, far superior for viewing active reports.
Only one fly in the ointment, if I have two Report Studio sessions open, it won't let me use the clipboard between them.
(for example, if I'd like to copy a query from one report to another)
I've tried installing an add-on called. "AllowClipboard Helper" and providing my environment's URL as an "Allow", but no success.
Has anyone else solved this?
I'm using Firefox 28.