How is it possible to download a firefox extension as .xpi-file from the official site https://addons.mozilla.org/ if not using firefox as a browser?

https://addons.mozilla.org/ in this case just shows "Only with Firefox—Get Firefox Now" instead of the install/ download button -- and when I click there, I am prompted to download firefox. But I want to get the extension (e.g. to install it manually on another computer, or in another browser like Pale Moon).

1 Answer 1


You can download an extension from Firefox:

  1. Go to the extension page, for example, https://addons.mozilla.org/en-US/firefox/addon/ghostery/?src=homepage-collection-featured.
  2. Right-click on Add to Firefox button and select Copy Link Location.
  3. Paste the link to the address bar, then insert "/type:attachment" after file number: "https://addons.mozilla.org/firefox/downloads/file/3390826/ghostery_privacy_ad_blocker-8.4.2-an+fx.xpi?src=homepage-collection-featured" -> "https://addons.mozilla.org/firefox/downloads/file/3390826/type:attachment/ghostery_privacy_ad_blocker-8.4.2-an+fx.xpi?src=homepage-collection-featured".
  4. Open the link.

... or from any other browser:

  1. Open the link to the extension (ex, https://addons.mozilla.org/en-US/firefox/addon/1password-x-password-manager )
  2. Under the button " Download Firefox and get the extension " click " Download File. "
  • 1
    The 3rd step is not necessary if the extension link is opened in Firefox. Also the ?src=homepage-collection-featured part can be removed from the first link.
    – Biswapriyo
    Nov 2, 2019 at 19:52
  • The 3rd step is necessary if you want to download the extension instead of install it.
    – GCRaistlin
    Nov 2, 2019 at 23:04
  • @GCRaistlin: But the question is how to download it without firefox. I have a reason to not use firefox itself. Nov 3, 2019 at 19:32
  • The answer is updated.
    – GCRaistlin
    Nov 4, 2019 at 7:52
  • If the addon is already added and you want to still download it from firefox go to the add-on page and view source. Search for xpi which will provide you the link to file (with weird u002F characters added). Clean the link & pass it to another extension such as Downthemall to download the xpi file
    – RedBaron
    Jul 8, 2021 at 8:20

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