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why each finished booting windows, the application itself is always open firefox with 2 tabs?

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My windows is: - 7 ultimate 64bit - use waterfox (really. but I change firefox, maybe do not know) - no antivirus installed - i use laptop acer v5-431

My windows is: - 7 ultimate 64bit - use waterfox (really. but I change firefox, maybe do not know) - no antivirus installed - i use laptop acer v5-431

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May be your Firefox exe file in startup folder.

Remove from the startup folder.

Goto Firefox Orange Button > Options > Options > General > Startup


Update your firefox to latest version. Firefox > Help