Comment 42 for bug 90376

I am also having the same problem of not being able to browse most HTTPS sites via Firefox, and SSL within Thunderbird is also broken. I believe this is something to do with Ubuntu's networking/secure libraries, however, because I also have VMWare Server installed with Windows XP running as Guest OS and when I launch that and try to browse the same HTTPS sites with Internet Explorer, they are also broken, just like on Firefox in the Host OS (Ubuntu). I have tried re-installing Firefox and the associated libraries as mentioned above ("sudo apt-get install --reinstall firefox libnspr4 libnss3") but this did NOT fix the issue for me. When I run the re-install, I get this message at the end:

"Warning: something created compreg.dat!
Your system was affected by this bug: https://launchpad.net/bugs/30791
compreg.dat has now been removed again, which should fix the symptoms."

But this still does not fix my issues.

My version of Ubuntu (64-bit):
Distributor ID: Ubuntu
Description: Ubuntu 7.04
Release: 7.04
Codename: feisty

Firefox version:
Version: 2.0.0.3+1-0ubuntu2

This issue started happening on May 11, 2007 and was never a problem before that. I upgraded in place from Edgy to Feisty several weeks ago.