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!

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

This thread was archived. Please ask a new question if you need help.

Where can I go to download Firefox 50.0

  • 2 replies
  • 3 have this problem
  • 1 view
  • Last reply by goatgod

goatgod
goatgod
more options

Firefox 51.0 has a known bug with Norton Security Suite on XP sp3. When Firefox opens, a Norton program, conathst.exe continually opens and runs, until there are hundreds of copies of this executible file running, until the computer crashes and automatically restarts. Other forums have said that it is fixed when you revert to Firefox 50.0

Where can I download Firefox 50.0?

Firefox 51.0 has a known bug with Norton Security Suite on XP sp3. When Firefox opens, a Norton program, conathst.exe continually opens and runs, until there are hundreds of copies of this executible file running, until the computer crashes and automatically restarts. Other forums have said that it is fixed when you revert to Firefox 50.0 Where can I download Firefox 50.0?

Chosen solution

See this support article: https://support.mozilla.org/en-US/kb/install-older-version-of-firefox

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

Read this answer in context 👍 1

All Replies (2)

the-edmeister
the-edmeister
  • Moderator
more options

Chosen Solution

See this support article: https://support.mozilla.org/en-US/kb/install-older-version-of-firefox

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

goatgod
goatgod Question owner
more options

Thank you, Ed-Meister :>)

Going back to Firefox 50.0 does solve the problem of Norton 360 repeatedly launching conathst.exe until all the memory is used up and the pc restarts.

Thanks for pointing me to this safe download site for the previous versions: https://support.mozilla.org/en-US/kb/install-older-version-of-firefox