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.

Avatar for Username

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Where can I find previous versions of Firefox for testing

  • 3 fhreagra
  • 36 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó rmeske

rmeske
rmeske
more options

We develop web based training and need to be able to test for compatibility with older versions of Firefox. Where can we download an official copies of each version?

We develop web based training and need to be able to test for compatibility with older versions of Firefox. Where can we download an official copies of each version?

Réiteach roghnaithe

Available here:
ftp://ftp.mozilla.org/pub/firefox/releases/

Read this answer in context 👍 5

All Replies (3)

the-edmeister
the-edmeister
  • Moderator
more options

Réiteach Roghnaithe

Available here:
ftp://ftp.mozilla.org/pub/firefox/releases/

weedydragon
weedydragon
more options

this makes no sense at all!

rmeske
rmeske Úinéir na ceiste
more options

When you are developing web apps and need to support multiple browser platforms you must be able to test even previous versions. Not everyone upgrades immediately with each new release of software, especially corporations.