Firefox Community Forum

I am trying to install Firefox on my new iMac. I can download the Firefox.dmg file and click the Eject "Firefox", but Firefox is not appearing in my Applications folder. What am I doing wrong? How do I get it to transfer?

You have invited me to download a new version of Firefox.

So What do I do with my existing Firefox?

If I don't like it, can I go back?

Please let me know.

John Parrott

System Details: Macbook Pro (2021) 16 inch Apple M1 Pro macOS Sonoma 14.6.1

1. I downloaded the latest Firefox from Mozilla official website, installed the app, made sure I can see the Firefox app in my applications. I start using the app. 2. Everything will be fine for a few days (say 1 week or 10 days) and one fine day, the browser stops working. Even google.com doesn't open. 3. I quit Firefox and try to re-start it. I cannot find Firefox in my system. It just disappeared. I cannot find in my applications. The search doesn't show Firefox.

I re-install by going back to step #1

This has happened not one time but many times. I searched if others have this issue but did not find anything that i could use. Hence posting this question here.

I have Firefox installed on a lot of other Macbook pros in my home, no other system has this issue. I don'ty understand what is happening. Just wanted to get some guidance in resolving this issue.

Thanks _Krishna

Have an old computer and running Ubuntu

Want to keep Firefox but old man and don’t understand certain aspects

Could somebody email me a link that help? Is there such an animal?

Email to

After I restarted my Windows 11 last night at 6:38 EST, Firefox updated to 139. I lost all my open tabs and history, and I've lost a day of work dealing with this. Help!

Just updated to 139.0.1 and got a surprise. My New Tab Favorites Icons now have Push Pins in their upper left corners, leaving less space for the icons, so of course my icons are now smaller than before. Why do the people maintaining the system at Mozilla keep messing with the New Tabs? Last time, they thought they needed to include a large image of the Firefox icon, again shrinking the remaining screen real estate for my icons. That got fixed. Now they decided each favorite icon needs a rather large push pin to indicate that it belongs there. Somebody thought this would be a good idea? Why can't they just leave it alone?

I'm posting two screenshot images of my New Tab screen. You will know which is before and which is after.

I have a mid-2012 Macbook Pro that works very well. I have no reason to replace it other than to have access to newer versions of applications, which so far I've not needed.

Does the March 2025 Firefox end-of-life dealine mean I simply will not be able to use Firefox anymore? I'm certainly not going to buy a whole new computer just to use a newer version of Firefox.

Since the latest Firefox update, the color of the letters appears black on a gray background, making them invisible. How can I change the colors of the bookmarks sidebar? Thanks in advance.