Hi fishTail, Thank you for your question. I understand that some menu dialogues in Firefox are not functioning as intended. There are a few you mentioned: the print dialogue, save page as.., and save link as dialogue. All of which still did the same thing after disabling avast and starting Firefox in Safe Mode.

Please do a virus scan and a extension troubleshooting because safe mode only disables add ons. Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems. If you cannot save as What to do if you can't download or save files For the printing issue, please reset the printer settings with the help of this article: Fix printing problems in Firefox

Please post back if you need more help :-)

This is just a follow-up post for anyone who might benefit from this. But to summarize in a sentence: my problem with Firefox 28 is due to Avast antivirus.

First let me say thanks to guigs2 for the suggestions even though they didn't help. :-)

The details: I had already tried safe made which didn't make a difference. Based on guigs2's link I then turned off hardware acceleration and switched to the default theme. Neither of these made a difference and I still could not bring up any dialog windows with FF. Lastly I disabled all extensions but that too was fruitless.

So at this point I felt it wise to try to start from scratch and uninstall Firefox and re-install. After doing that, I still had the problem and frustration was at an all time high. Sigh.

My gut feeling was that Avast was involved. But no matter which Avast shields I turned off, it didn't make FF start working as it should. So I uninstalled Avast and rebooted and now FF dialogs were back! Success!!

I am now using AVG instead since re-installing Avast killed FF dialogs again. I'm much more fond of Firefox than Avast so if one has to go, it certainly wasn't going to be FF.

I'll check the Avast board for any info but I doubt if I'm going back to them.

-FishTail