Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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

do i need to uninstall my current version of firefox to install firefox 4

  • 2 replies
  • 6 have this problem
  • 16 views
  • Last reply by luigitrotta

more options

do i need to uninstall my current version of firefox 3.6.16 to install the NEW firefox 4 ?????

do i need to uninstall my current version of firefox 3.6.16 to install the NEW firefox 4 ?????

Chosen solution

if you have only one OS on your pc. the answer is NO. but you may encounter some problem there. so to avert that, you can do a complete uninstall for the previous version of firefox 3.6.x

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

if you have only one OS on your pc. the answer is NO. but you may encounter some problem there. so to avert that, you can do a complete uninstall for the previous version of firefox 3.6.x

more options

Thanks for you reply cityminz i will do a complete uninstall of firefox 3.6.x and then install the new firefox 4