Об этом дополнении
Changes include:
- Buttons and other elements take their colors and appearance from your system's settings.
- The Add-ons Manager opens in its own window.
- The status line (that shows e.g. "will be enabled after you restart Firefox" and "is incompatible with this version of Firefox") is moved to the bottom of the extension entry. The incompatible warning is hidden if you have extensions.checkCompatibility set to false.
- The Discover pane is hidden, since you probably don't need help discovering add-ons if you're reading this.
- The "Remove" button is hidden, and the "Disable" button is hidden for window widths under 800px. You can still access these from the context menu, or the details page.
Note: currently very broken (the extension pane is invisible) in Fx40 due to bug 1132971, bug 989469 and possibly the extension signing stuff. You can disable it from about:Addons or safe mode.