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Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

My homepage switches to MSN after every update

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Why does this happen? Is Mozilla doing this as part of the update? It seems very shady.

If not Mozilla then how do I keep it from happening?

Why does this happen? Is Mozilla doing this as part of the update? It seems very shady. If not Mozilla then how do I keep it from happening?
Attached screenshots

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Can you go to ≡ -> Help -> About Firefox and attach here the screenshot of the About window?

Athraithe ag TyDraniu ar

Start Firefox using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

Are you using Firefox from the Mozilla server or possibly a special Firefox version branded by Acer ?

Firefox by Acer? WTH?

It's their preinstalled fork. Try to download firefox directly from the mozilla website.