Click the menu button , click Add-ons and select Get Add-ons Recommendations. To install a featured recommended add-on, click the blue + Install Theme or + Add to Firefox button, depending on the type of add-on. To uninstall an add-on you just installed, click the grey Remove button.

Find and install add-ons to add features to Firefox Click the menu button , click Add-ons and select Get Add-ons Recommendations. To install a featured recommended add-on, click the blue + Install Theme or + Add to Firefox button, depending on the type of add-on. To uninstall an add-on you just installed, click the grey Remove button. Add or remove a search engine in Firefox | Firefox Help The Firefox Add-ons website will open. Select the search engine add-on you want to install and click Add to Firefox . Note : The Mycroft Project website also …

Mar 08, 2017

Support for extensions using XUL/XPCOM or the Add-on SDK was removed in Firefox 57, released November 2017. As there is no supported version of Firefox enabling these technologies, this page will be removed by December 2020. Add-ons using the techniques described in this document are considered a legacy technology in Firefox. Add-on (Mozilla) - Wikipedia The Mozilla add-ons website is the official repository for Firefox add-ons. In contrast to mozdev.org which provides free hosting for Mozilla-related projects, the add-ons site is tailored for users.By default, Firefox automatically checks the site for updates to installed add-ons. In January 2008, Mozilla announced that the site had accumulated a total of 600 million add-on downloads and that

This allows Firefox to load the site more quickly and smoothly, possibly skipping some security checks along the way. Another very important feature of using the Trusted sites option is that it will enable add-ons as an exception. Add-ons like Java, Adobe Flash and the ActiveX plug-in are a great security vulnerability for your browser.

Support for extensions using XUL/XPCOM or the Add-on SDK was removed in Firefox 57, released November 2017. As there is no supported version of Firefox enabling these technologies, this page will be removed by December 2020. Add-ons using the techniques described in this document are considered a legacy technology in Firefox.