This is useful to prevent sites from using overly small fonts that are barely readable.
You can also set the minimum web page font size. You can also change the size for Monospace fonts. Specify the font to use for Serif, Sans-serif and Monospace fonts.
Then specify the font size you want for proportional text. For a language/script not in the list, choose Other Writing Systems. Some websites have custom fonts to disable them: Any changes you've made will automatically be saved. Click the menu button and select Settings. Click the menu button and select Options Preferences. In the Menu bar at the top of the screen, click Firefox and select Preferences.
