My primary browser is IE. I'm using Firefox as a secondary one and it has performed fine since I installed it, months ago,.... till today when, without any noticeable reason, whenever I copy something from any material (a newspaper page, for instance) displayed by Firefox and try to paste it in an Outlook message text or in a Word document, what I got pasted is the last material copied before entering Firefox. That is, nothing was copied from the newspaper page displayed by Firefox.

If I select the full URL from the Firefox URL's window and use the 'cut' command, the URL disappears, but when I try to paste it elsewhere I also got the last material copied before entering Firefox. The 'copy' command does not work within Firefox.

However, If I do the same using IE, it works perfectly.

I uninstalled Firefox, asked for complete deletion of related files, deleted the Program Files Mozilla folder manually, restarted my PC and installed a Firefox fresh copy,.. and got two surprises:
1) When I open Firefox I got same tabs than before (what happened with the 'delete all related files' command?);
2) The copy&paste problem is still the same.

Any ideas on how to solve that,... other than forget about Firefox?
After you uninstall,rebootandrun ccleaner, then reinstall (www.ccleaner.com but be sure to uncheck the "I want Yahoo Toolbar" box.)The lingering files sound to me like they are related to SessionSaver. Had you installed that extension?

I have heard of problems with the latest Firefox related to cut and paste. Presumably that will be fixed in a hurry.No, as far as I recall I didn't install SessionSaver.

Last night I installed Firefox 1.5.0.2 in a nother PC whose only browser is IE. The installation was fine but from the very beginning Firefox presented the same copy&paste problem. Even more, when I decided to shut off that PC I was asked to wait because some updating was TAKING place and the PC will shut off automatically awhen done. Well, I trusted that and went to bed.... to find this morning the PC in the same place and routine and left it last night. What was new in it? Firefox; nothing else.

I have tried several wasy in my main PC (installing a previous Firefox version, uninstall Google Desktop Search, uninstall Google Updater, etc.) but problem is still there.i got the same problem several weeks ago, and i posted in this forum and other forums also and i got also the same RESPONSE---
Uninstall and reinstall.
CTRL+C CTRL+V sometimes working but most of the time not working
and this is what i got also in other website "its a bug"
and i know FF knows it very well and until now they cannot fix it (i dont know why)

what i make is, i transfer to OPERA and its doing fine for me (and i think you try also OPERA)Well, since FF hasn't fixed the problem yet I installed Opera FOLLOWING Infoseeker's advice, and I got a pleasant surprise. I don't think Opera is faster or easier than FF but has several INTERESTING features FF has not. I have to continue exploring Opera but I suspect it'll become my primary browser.