This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How do I install a mobile addon manually? The xpi will not open in firefox.

  • 2 majibu
  • 38 wana tatizo hili
  • 23 views
  • Last reply by psychowood

more options

The mobile site does not allow me to install XPI files, it downloads them, but I cannot for the life of me get the XPI to open. Also, I cannot search for addons in the preferences, all searches return no results.

The mobile site does not allow me to install XPI files, it downloads them, but I cannot for the life of me get the XPI to open. Also, I cannot search for addons in the preferences, all searches return no results.

All Replies (2)

more options

There seems to be a problem with our add-on site right now. I'll check with the people responsible and hopefully this will be fixed soon.

If you used an add-on or a hidden preference to change the "User-agent" header in Firefox, please try setting it back to the default. This can also cause the add-on site to download add-ons instead of installing them. (If you don't know what this means, you can just ignore it.)

more options

If you have the .xpi file in your phone memory, you can just type in Firefox address bar "file://" to browse to the file location, tap on it and wait to be installed.