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Why do the letters get hard to see after being on Mozilla for a few minutes, doesn't happen om Explorer?

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whenever i use firefox and the internet screen comes up if i browse for a few minutes gradually the letters seem to fade, almost like the font changes. If i select a website, again at first all is fine, but gradually the same thing happens, if i click on the script they will sharpen up but the same things happens after a minute or two. If i use Internet Ex this does not happen, i would rather use Firefox.

whenever i use firefox and the internet screen comes up if i browse for a few minutes gradually the letters seem to fade, almost like the font changes. If i select a website, again at first all is fine, but gradually the same thing happens, if i click on the script they will sharpen up but the same things happens after a minute or two. If i use Internet Ex this does not happen, i would rather use Firefox.

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Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

To Enable SafeMode

  • You can open Firefox 4.0+ in Safe Mode by holding the Shift key when you open the Firefox desktop or Start menu shortcut.
  • Or open the Help menu and click on the Restart with Add-ons Disabled... menu item while Firefox is running.

FirefoxSafeMode

Once you get the pop-up, just select "'Start in Safe Mode" Safe Mode Fx 15 - Win

If it works in Safe Mode and in normal mode with all extensions (Tools > Add-ons > Extensions) disabled then try to find which extension is causing it by enabling one extension at a time until the problem reappears.

Close and restart Firefox after each change via "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: "Firefox > Quit Firefox"; Linux: "Firefox/File > Quit")