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some pages have lines of text over another line so can't read.

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Doesn't happen on Safari. Don't like Safari. Apple refuses to help, doesn't support Firefox. This just started about 3 months ago, when apple imac was 2 months old

Doesn't happen on Safari. Don't like Safari. Apple refuses to help, doesn't support Firefox. This just started about 3 months ago, when apple imac was 2 months old

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If you have increased the minimum font size then try the default setting "none" as a (too) high value can cause issues.

  • Firefox > Preferences > Content : Fonts & Colors > Advanced > Minimum Font Size (none)

Make sure that you allow websites to choose their fonts.

  • Firefox > Preferences > Content : Fonts & Colors > Advanced > [X] "Allow pages to choose their own fonts, instead of my selections above"

It is better not to increase the minimum font size, but use an extension to set the default page zoom to prevent issues with overlapping text.


Reset the page zoom on pages that cause problems.

  • View > Zoom > Reset (Ctrl+0 (zero); Cmd+0 on Mac)