how to get rid of disable add ons message

Note that some add-ons require a Firefox restart to be removed completely.

You should see a message that informs you about the successful removal of the add-on. To remove an extension from Firefox, simply click the Remove button.You should now see a list of your installed extensions on the right side together with buttons on the right side of each extension.Once the Add-on Manager has opened in a new tab, click the Extensions button on the left side of the window.From the Firefox window click the Firefox button at the top left and select Add-ons, or, if the Firefox button is not shown, click the Tools menu and click Add-ons.In order to uninstall a possibly unwanted extension, please do the following: Add-ons that cause stability or security issues are put on a blocklist.Reporting extensions and themes for abuse.Find and install add-ons to add features to Firefox.It is greyed-out on the UN Install button, so I went to the guideline on Firefox to find out how to get rid of it but it is not listed under my PC files, under 'Extensions.' It is called Desperate to get rid of any and all yahoo components from my computer plugin.disable_full_page_plugin_for_types: application/x-bittorrent,application/bzip2,application/x-bz2,application/x-bzip2,application/mac-compactpro,application/octet-stream,application/x-gzip,audio/audible,application/macbinary,application/x-macbinary,application/pdf,application/postscript,application/vnd.ms-excel,application/vnd.ms-powerpoint,image/jp2,application/x-quartzcomposer,application/x-rar,application/x-rar-compressed,application/x-sit,application/x-stuffit,application/x-gtar,application/x-tar,application/x-msdownload,application/msword,application/x-zip-compressed,application/zip,audio/x-audible,application/mac-binhex40,application/x-compress.

How to get rid of disable add ons message