The component comprises of Mozilla installer scripts to install an XPI package. Mozilla uses a component called XPI install. XPI files also contain software browser plugin, theme, or extension.

It’s used by various Mozilla applications like Firefox, Thunderbird, and also sea money. The signed add-on file you downloaded from AMO will be named something like borderify-1.0-an+fx.xpi (see Signing and distributing your add-on for more details), change this to, for example, you are developing an add-on for Firefox you can use an extension proxy file to install an add-on without copying the files over to the standard extensions folders.XPI file is a compressed installation archive. To use this method, your XPI file must be named using the add-on or application ID, as set in Preparing your add-on. For details on controlling whether the user is prompted to approve the installation, see Controlling automatic installation. If the user has more than one Firefox profile, the approval and installation will occur on the next launch of each profile. By default, the user will be asked to approve the installation, and if the user approves, the add-on will be installed and automatically loaded for subsequent launches. Once copied, the next time Firefox launches the add-on will be installed. This method of add-on installation involves copying the add-on into one of the standard extension folders on the user's computer. See the Add-ons Blog for more information. Starting in Firefox 73, it will no longer be possible to have an extension be automatically installed as part of another application install.

Removing your extension from distribution.

Will I ever be able to sell through AMO?.

Use plain language in any privacy policy or license agreement.Select the right platforms and versions.The add-on description can be longer, but not too long.Focus on key features in your screenshots.Make sure your summary is just long enough.

Xpi file