We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

I cannot open firefox 35.

  • 2 replies
  • 1 has this problem
  • 7 views
  • Paskiausią atsakymą parašė miekev

more options

I have a Mac OS-X10.9.4. with firefox 34. Each time I open ff, I am asked to download 35. And I do, and restart firefox. But each time I am back to version 34, and get asked again, and again... 35 will download (shows up in my downloads folder), click on it to load, seems to work, but still I am back at 34. 35 doesn't show up anywhere, in Applications folder.

I have a Mac OS-X10.9.4. with firefox 34. Each time I open ff, I am asked to download 35. And I do, and restart firefox. But each time I am back to version 34, and get asked again, and again... 35 will download (shows up in my downloads folder), click on it to load, seems to work, but still I am back at 34. 35 doesn't show up anywhere, in Applications folder.

Chosen solution

Hello miekev, please try to download and install firefox, do the next steps:

1. Download a copy of the latest firefox from http://www.mozilla.org/en-US/firefox/all.html (full dmg package)

2. Trash the current Firefox application to do a clean install.

3. Install the version that you have downloaded.

Do not select to remove your personal data, your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks or other personal data.

see also: How to download and install Firefox on Mac


thank you

Skaityti atsakymą kartu su kontekstu 👍 0

All Replies (2)

more options

Chosen Solution

Hello miekev, please try to download and install firefox, do the next steps:

1. Download a copy of the latest firefox from http://www.mozilla.org/en-US/firefox/all.html (full dmg package)

2. Trash the current Firefox application to do a clean install.

3. Install the version that you have downloaded.

Do not select to remove your personal data, your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks or other personal data.

see also: How to download and install Firefox on Mac


thank you

more options

I did succeed ahead of receiving a reply. But it seems it was because of one small obscure step: after downloading and dragging the orange logo into the applications folder, I was apparently also supposed to press Control AND click on the blue window and then click 'eject Firefox'. Seems strangely obscure but I now have FF35 and won't be bothered by requests to upgrade. Thank you.