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Firfox stop working then close and open again then got message firefox already runnung also firefox process can't kill so need to hard reboot.

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Hello, Firefox stop working all tab. It has no response no any website work also I was refresh then no any change so I need to close browser. When I was open firefox again I got message firefox already running. After opening Task manager firefox process is there but many times I was try to kill but firefox can't kill after I need to only hard reboot. It happen many times in a day. I was uninstall and install many times.



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Pls check attached while browser stop working.

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Start Firefox in Safe Mode {web Link} by holding down the <Shift>
key, and then starting Firefox. Is the problem still there?

Start your Computer in safe mode with networking. Then start Firefox. Try Safe web sites. Is the problem still there?

Starting The Computer In Safe Mode;
Free Online Encyclopedia

Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Then in the reply box at the bottom of this page, do a right click in the box and select Paste. This will show us your system details. No Personal Information Is Collected.

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What security software do you have?

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) to see if that helps.