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my firefox settings are changed by someone unknown

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  • Last reply by FredMcD

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every so often ..the settings in firefox get changed by persons unknown ... ie the home page ...start rules .. search engine etc how can i prevent this ?

every so often ..the settings in firefox get changed by persons unknown ... ie the home page ...start rules .. search engine etc how can i prevent this ?

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Some software can change user settings without the user knowing.