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My firefox wont open, I've uninstalled and reinstalled it and it still doesnt work. It wont open so I can't change anything in safe mode. Please help :(

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I used to have at&t internet, dont know what this has to do with it but it's weird that as soon as I switched over to comcast internet my firefox completely stopped working -__- I try to open it and it loads but the page never comes up. Someone please help me, I dont want to lose my bookmarks and passwords..

I used to have at&t internet, dont know what this has to do with it but it's weird that as soon as I switched over to comcast internet my firefox completely stopped working -__- I try to open it and it loads but the page never comes up. Someone please help me, I dont want to lose my bookmarks and passwords..

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Another way to start into Safe Mode is to hold the Shift key when double-clicking the Firefox icon.

If you have tried to start multiple times, you might have a frozen Firefox process in memory. To terminate that (I'm assuming Windows) open the Task Manager using Ctrl+Shift+Esc, click into the Processes tab, and look for firefox.exe. If you find it, highlight it and click End Process to kill it. Alternately, restarting Windows will clear it.

Any luck starting in Safe Mode?

Did you install any software from Comcast?