hi Connie2, other users have reported that this issue was caused and could be resolved by adjusting the settings of their norton software running on affected systems: https://support.mozilla.org/en-US/questions/1048938#answer-696520 https://community.norton.com/en/forums/firefox-extreemly-slow-start

Connie2 said

I have refreshed and re installed Firefox 3 times as well as scanned my hard drive with Norton Internet Security for viruses. Nothing worked. Firefox 36.0 and 36.0.1 take about 45 seconds to start up. I have been using Firefox for many years and never had a problem until about a week ago. Help would be very much appreciated. Thanks Connie2

philipp said

hi Connie2, other users have reported that this issue was caused and could be resolved by adjusting the settings of their norton software running on affected systems: https://support.mozilla.org/en-US/questions/1048938#answer-696520 https://community.norton.com/en/forums/firefox-extreemly-slow-start

Philipp: I turned off Norton Internet Security 21.6.0.32 and re started Firefox and Firefox worked like a charm. So the issue is definitely Norton. Now to contact Norton. Thanks for the help and quick reply! Connie2

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