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

latest esr link doesn't download

  • 3 replies
  • 4 have this problem
  • 1 view
  • Last reply by esruser

more options

According the this document: https://ftp.mozilla.org/pub/firefox/releases/latest-esr/README.txt

The following URL is supposed to work: https://download.mozilla.org/?product=firefox-esr-latest&os=win64&lang=en-US However, I am presented with a 404.

The following link does download a 32 bit ESR installer, but it's not the latest version. It's 38.7.0. The latest ESR is 45.0: https://download.mozilla.org/?product=firefox-esr-latest&os=win&lang=en-US

The document needs to be updated, and I'm uncertain of where to direct it without sending it to a dozen possibilities. Can anyone help?

According the this document: https://ftp.mozilla.org/pub/firefox/releases/latest-esr/README.txt The following URL is supposed to work: https://download.mozilla.org/?product=firefox-esr-latest&os=win64&lang=en-US However, I am presented with a 404. The following link does download a 32 bit ESR installer, but it's not the latest version. It's 38.7.0. The latest ESR is 45.0: https://download.mozilla.org/?product=firefox-esr-latest&os=win&lang=en-US The document needs to be updated, and I'm uncertain of where to direct it without sending it to a dozen possibilities. Can anyone help?

Chosen solution

There is a two-version transition period for users of ESR-38 to test ESR-45 and ready their systems for it. I think that explains why the download server does not push 45 right away, on the assumption that those using it will want that time.

If you prefer 45, you can download from this page: https://www.mozilla.org/firefox/organizations/all/ (above the list on the right is a selector for 38 or 45 links).

Regarding the download link, I don't know why it isn't working as described. There is a mailing list for "release engineering" that might be a place to mention this problem: https://lists.mozilla.org/listinfo/release-engineering.

Read this answer in context 👍 1

All Replies (3)

more options

esruser said

The following URL is supposed to work: https://download.mozilla.org/?product=firefox-esr-latest&os=win64&lang=en-US However, I am presented with a 404.

Not a valid url since there are no Win64 Firefox 38.0.x Releases let alone Firefox 38 ESR Releases. The first Firefox Release to have Win64 Firefox was 42.0.

There is no Win64 versions of the older Firefox 38 ESR branch. However there are Win64 builds of Firefox 45.0 ESR (like with current Fx 45.0 Release).

Both current Firefox 45 ESR and 38 ESR versions are listed (look at top for how Firefox 45 Firefox 38) on https://www.mozilla.org/firefox/organizations/all/ however the Win64 Firefox 45.0ESR is currently not listed on page.

https://ftp.mozilla.org/pub/firefox/releases/45.0esr/

Modified by James

more options

Chosen Solution

There is a two-version transition period for users of ESR-38 to test ESR-45 and ready their systems for it. I think that explains why the download server does not push 45 right away, on the assumption that those using it will want that time.

If you prefer 45, you can download from this page: https://www.mozilla.org/firefox/organizations/all/ (above the list on the right is a selector for 38 or 45 links).

Regarding the download link, I don't know why it isn't working as described. There is a mailing list for "release engineering" that might be a place to mention this problem: https://lists.mozilla.org/listinfo/release-engineering.

more options

I will contact the release-engineering list with other inquiries and about this one. Thank you both for your replies.

Happy Surfing!