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How do I change the font size? Since we started using Windows 7, the font size on Firefox is super small compared to when we had Windows XP.

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I have tried everything and cannot change the size of the font. The Firefox toolbar is not compatible with Windows 7 so if the font fix is in the toolbar, that will be a problem!

I have tried everything and cannot change the size of the font. The Firefox toolbar is not compatible with Windows 7 so if the font fix is in the toolbar, that will be a problem!

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See this for the user interface:

You can use an extension to set a default font size and page zoom on web pages: