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

keep trying to install latest version of firefox, looks like it has installed but on checking find it hasn't (Mac)

  • 3 cavab
  • 1 has this problem
  • 30 views
  • Last reply by FredMcD

more options

On loading Firefox - advised to update to latest version 39, current one is 35.0.1. Downloads OK. Appears to install, move to Applications as instructed - replacing existing copy. Relauch and I find I am still using version 35.0.1. Running on Mac with OS X version 10.9.5

On loading Firefox - advised to update to latest version 39, current one is 35.0.1. Downloads OK. Appears to install, move to Applications as instructed - replacing existing copy. Relauch and I find I am still using version 35.0.1. Running on Mac with OS X version 10.9.5

All Replies (3)

more options
more options

these are the instructions that i followed originally - they did not resolve the issue.

more options

Something may be blocking the install.

Start your Computer in safe mode with networking.

Starting The Computer In Safe Mode;
Free Online Encyclopedia

Then run the installer.

I've called the big guys to help you. Good luck.