asked on 19th Sep 2011 | 1 Answers | Answer It!
Please try the following steps:
(a) First try to update all the addons.
(b) If this does not help, try to disable addons or start firefox in Safe mode by pressing Shift key while launching the Firefox and then check.
(c) Delete all the history and cookies and then check.
(d) If this does not help, please mention which types of sites are not opening. If it is just the secure sites, try the steps mentioned in the link http://support.mozilla.com/en-US/kb/Firefox%20cannot%20connect%20securely%20because%20the%20SSL%20protocol%20is%20disabled
Here’s to Good Karma

Here's to Good Karma





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