Theme Font Size Changer Instantly changes the font size of all windows, menus, toolbars, etc within Firefox
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Theme Font Size Changer Description

Instantly changes the font size of all windows, menus, toolbars, etc within Firefox Different from add-ons that enlarge and reduce text on web pages, Theme Font Size Changer changes the font size in all windows, menus, toolbars, etc within Firefox itself.Theme Font Size Changer was initially created to be an accessibility aid for persons with visual impairments and for those without perfect eyesight, but it's also useful for Firefox users with high monitor resolution settings and wide screens.While Theme Font Size Changer was written to be used with Firefox's default theme, it does work with other non-default themes, but you may come across issues where some elements within Firefox retain the (non-default) font size setting that the theme developer chose for their theme. Also, Theme Font Size Changer will not change the font size in cases where custom (non-default) font sizes are used with the !important rule.There are 4 ways to access Theme Font Size Changer's drop down menu to choose a font size.1. Toolbar button (optional, not applied by default)2. Status bar button (right or left click)3. Tools > Theme Font Size Changer4. Tools > Add-ons Manager > Theme Font Size Changer > OptionsSimply select a font size value (from 9 to 40 pixels) and it will be applied instantly and globally.A "Normal" (default) value is also provided as well as an indicator next to the currently applied font size setting.Known IssuesPlease keep in mind that this extension was designed for use with Firefox's default theme and the fact that it works with non-default ones is more of a bonus than the primary goal and function of it.Compatibility issues found when tested with 32 Firefox themes were minor overall, but a few were major, while others had no compatibility issues at all.Any compatibility issues will mostly be dependent on the theme (or extension) developer's CSS value choices for any given element.The font size in some elements in non-default themes remains unchanged.For example and through testing, the font size of tab text was unchanged by Theme Font Size Changer (in some themes).Repeating backgrounds.With some non-default themes you may encounter repeating backgrounds (on toolbars, etc) when the font size is increased. Increasing the font size also increases the height of other elements (like toolbars) and so if specific CSS properties are not set to prevent backgrounds from repeating, then a background will repeat itself which you may find to be undesirable.Text bleeding out of elements or being cut off.You may notice this in some themes such as on dialog buttons, drop down menus, and tabs.Using your own CSS rules (with Stylish, etc) will resolve most of the issues noted.For example you could use the following to fix the tab text one..tab-text {font-size: 30px !important;}No known compatibility issues with the following themes.NASA Night LaunchKempeltonKempelton LargeQuteMostly CrystalSilvermelWalnut for Firefox (except for status bar text)Ambient Fox XyanThemes by Aaron SpulerThere are no known compatibility issues with Personas. Requirements: · Mozilla Firefox

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