Komunitné fórum Firefox

Hello everyone,

yesterday I got quite a scare. While Firefox was open, a new tab briefly appeared showing the page about:processes, and immediately afterwards the browser closed itself on its own.

At the same time, Chrome was open in the background. When I clicked on Chrome, a prompt appeared asking whether I wanted to allow changes to be made to the system (the typical UAC prompt). However, I’m not entirely sure if this was actually triggered by Chrome or possibly by another application.

I clicked “No” on the UAC prompt and immediately unplugged my keyboard. I recently started using an ASUS ROG Falcata, which is connected via USB.

After that, I ran a virus scan with Windows Defender — it didn’t find anything. I also ran AdwCleaner, which also came up clean.

At first, I suspected the ASUS ROG Falcata (I’ve only been using it for a few days), since it’s almost like a small computer itself and can execute macros, patterns, etc. I was worried about a possible firmware bug or something worse. At the moment, I’m honestly hesitant to plug it back in and am using an old Dell keyboard instead.

Importantly, I wasn’t pressing any keys at the time of the incident.

Now I’m quite unsure what could have caused this.

Is there any way to trace this in Firefox (e.g., via logs)?

And is there any (event) log where I could check what triggered the UAC prompt?

One more thing I noticed: I shut down the PC afterward and turned it back on later that evening. Everything booted normally and is still running fine today. However, Firefox updated itself yesterday from version 148.2 to 149. Maybe that was somehow related (though there’s no indication in the Firefox update history that anything failed or similar).

Hello all.

I'm running into frequent tab crashes, very commonly on pages that have a lot of elements, or things to render on the page.

Specifically, I am being challenged by gmail, where switching to my inbox will 100% crash my tab.

Here are a few crash reports to look at from this gmail example. It is not gmail alone that causes this, other websites such as Zillow, youtube, etc. Pages that contain a lot of information and pictures typically cause this.

https://crash-stats.mozilla.org/report/index/d4965ad5-0592-4b0a-bc67-4e8080260328#tab-details https://crash-stats.mozilla.org/report/index/f48490e0-6aaf-423c-80a1-e2aaf0260328#tab-details

I also want to mention that I have the exact same profile loaded onto another machine, and I experience no issues. I do not believe this is an extension issue, but I am open to disabling all of them and generating more crash reports if anyone would like for me to try that.

What stuns me the most in these crash reports is the reported amount of "available virtual memory" exceeding far beyond what I have available on my machine. Can anyone help pinpoint what about my system would keep making Firefox think I have this much available virtual memory?

Thanks for any advice and help!

After new update my Firefox is completely bricked. I can't do anything with it, it just wiped all of my tabs out and now I can't open any, search or do anything.

All my settings are blank, running private doesn't help. If I right click a tab, it shows up with "new" and all of the other opens are blank.

It first happened after the update, only my first and last tab had titles. All the other tabs open turned blank, and could not be accessed. Then the second time I accessed them, they had all disappeared.

Tried reinstalling, didn't help.

On desktop, but had to make this on mobile because I can't even get to the support website.

All firefox windows just disappear after a random amount of time. Where can I look for possible logs of what's happening. Didn't see anything obvious in Event Viewer>