go to Help Menu -> select "Restart with Add-ons Disabled"

Firefox will close then it will open up with just basic Firefox. You can enable the Add-ons later. If this doesn't work then check these out.

Error loading web sites https://support.mozilla.com/en-US/kb/Error%20loading%20web%20sites#w_other-issues

Firefox crashes when loading certain pages https://support.mozilla.com/en-US/kb/Firefox%20crashes%20when%20loading%20certain%20pages#w_crashes-on-sites-with-windows-media-player-video-or-audio

Check and tell what solutions worked.

None of the above worked. I didn't see the browser opt dll file. Tried connecting to you tube again and was timed out. I didn't try a google search cause I'm frustrated. tried loading something and n the side it said could not connect to adclick.

Start Firefox in Safe Mode by Holding down the SHIFT key while Starting Firefox -> Safe Mode window -> select options 2,4,5 -> Make Changes and Restart. If this solution doesn't work then ->

Start Firefox in Safe Mode by Holding down the SHIFT key while Starting Firefox -> Safe Mode window -> select ALL options -> Make Changes and Restart

Now Firefox will start as if you just downloaded & installed it from scratch. Check and tell if its working.

Everything seems to be OK. I was able to get to you tube and did google searches. Thank you so much for your help it is greatly appreciated.

None of this will help my situation. Whenever I try to restart, press the shift key, and enter in all the boxes, I can't access anything at all from Firefox. I had to click "no proxys" in order to get back to anything. I can't access Google, Bing, Ask.com, my YouTube account, however I can access YouTube, but it tells me to download Adobe and when I do, it still doesn't work.

flyer93 following are the steps for you to perform in order to Start Firefox in Safe Mode.

Click the Windows Start button, select Run.... Type one of the following in the Windows Run box:

       firefox -safe-mode
                     OR
       "C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode 

Safe Mode window will appear -> select ALL options and click "Make Changes and Restart"

Now Firefox will start as if you just downloaded & installed it from scratch. Check and tell if its working.

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