Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

downloading .xpi from addons.mozilla.org?

  • 1 reply
  • 1 has this problem
  • 23 views
  • Last reply by Matt

more options

W/ t-bird beta v66b1 today (and earlier devs post 60) I do not see how to 1) locate the addons.mozilla.org website. Link please? (the notes say addons.thunderbird.net is being deprecated or somesuch, and there is no pointer in add-on submenu to go to addons.thunderbird.org.) 2) I found somewhere in moz, a french translator that I want to try in t-bird. The extension only has 1 choice: "install now." No .xpi is visible, for me to save & try in t-bird. So how can I get that xpi to save & try in t-bird dev build? (all w10)? Thank you.

W/ t-bird beta v66b1 today (and earlier devs post 60) I do not see how to 1) locate the addons.mozilla.org website. Link please? (the notes say addons.thunderbird.net is being deprecated or somesuch, and there is no pointer in add-on submenu to go to addons.thunderbird.org.) 2) I found somewhere in moz, a french translator that I want to try in t-bird. The extension only has 1 choice: "install now." No .xpi is visible, for me to save & try in t-bird. So how can I get that xpi to save & try in t-bird dev build? (all w10)? Thank you.

All Replies (1)

more options

Boy this has to cover a lot of ground, the add-on architecture of Thunderbird is changing.

1. Addons.mozilla.org is for Firefox addons. There are no Thunderbird add-ons hosted there (esxcept for some dictionary files)

2. Addons.thunderbird.net (ATN) hosts all Thunderbird addons. It is best used through the addin manager of Thunderbird to search as it will offer the correct version of an addon for your version of Thunderbird (if there is one. This is going to be very important for the future while every version has different compatibility issues. Some addons like Lightning has many versions on ATN and selecting the best for your version of Thunderbird is best left to the computers.

3. Addons that work with Thunderbird 60 will not work with 66, they probably will fail in beta versions before 66.

4. The age old practice of finding an XPI file and trying to install it is not a good option at he moment and unlikely to be until the Thunderbird webapps API (much like the Firefox webapps but for mail) is finalized. Although it will probably have a name change before release as it will not be web focused but mail focused.

5 Basically in the version of Thunderbird you are using there are almost no add-ons that actually work and even fewer that are feature complete. Hence the hiding of the actual XPI files. They are no longer one size fits all. Far from it as the basics of loading an add-on are completely different in 66 than in 60.

In the site addon.mozilla.org you can still right click the install in Firefox button and select save link as to save the underlying XPI file, but as it will only run in firefox there is little point beyond the ability make your own archive of installed add-ons for some reason.

Modified by Matt