Firefox does not start, multiple firefox.exe apps open

User Help for Mozilla Firefox

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Joined: February 15th, 2007, 11:13 am

Post Posted October 17th, 2017, 9:13 am

I don't know what site you have configured as your home page, but it might be worth your while configuring it as about:blank which loads a blank page when you launch it. I use this myself.

The reason I'm suggesting that is because of a setting in the Trend Micro options menu to block any site which doesn't have a valid certificate. So if your home page is just such a site whose digital certificate has expired for example, the AV will block the site from loading effectively preventing Firefox from starting.

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