Firefox and Thunderbird addon to manage settings using AD Group Policy
...Regular releases may contain changes to which the addon is not adapted.
Since 53 Firefox support only WebExtensions. WebExtensions can't access to registry and can't do anything with application preferences. Therefore the **last version** of Firefox in which this **add-on** works - 52 ESR, because of this since 1.0 version its **autoconfig module**.
...FitText now allows you to specify two optional pixel values: minFontSize and maxFontSize. Great for situations when you want to preserve hierarchy. Run FitText before anything that hides the element you're trying to size (e.g. before Carousels, Scrollers, Accordions, Tabs, etc). Hiding an element's container removes its width. It can't resize without a width.