Firefox 1

Firefox 1 (en-US) 21.0

Legacy version of Firefox that's no longer supported

WARNING: This is a very old version of Firefox. View full description

WARNING: This is a very old version of Firefox.

To download the most recent stable release, click

We'll leave this one up for a while in case advanced users would like to download it for other purposes!


Firefox 1 is a powerful, free (gpl) Windows software, being part of the category Browsers and subcategory Web browsers and that has been created by Mozilla.

More about Firefox 1

Firefox 1 is a light program that takes up less space than the average program in the category Browsers.

It's a popular program in India, United States, Tanzania, and United Republic Of.Since the program joined our selection of programs and apps in 2005, it has achieved 1,729,555 downloads, and last week it gained 30 downloads.

It's available for users with the operating system Windows 2000 and more recent versions, and it is only available in English. The software version is 21.0 and was updated on 04/02/2013.

Firefox 1


Firefox 1 (en-US) 21.0

User reviews about Firefox 1

  • CygnusCentauri

    by CygnusCentauri


    Just an outdated version of Firefox. Try the latest version if you want the best..   More.

  • RobertAlfon

    by RobertAlfon

    "Best browser of all."

    I like it alot, it's fast, reliable, and secure. It shows all websites properly, unlike any other internet browser..   More.

  • smurray

    by smurray


    Whatever Microsoft do with the next version of IE, there´s no way it´s going to come close to FF. Apparently Microsof...   More.