Firefox Support Forum

when I'm on sites playing games, i.e. face book, I keep getting this across the bottom of my screen:

https://googleads.g.doubleclick.net/

How can I disable it? I can't take a screen shot because if I place my mouse on it, it skips to another place on my screen.

ty, Jerrie

Firefox uses too much memory, sometimes 20GB on a 32GB Windows machine. It's usually one or two threads which are hogging incredible amounts of memory. This time I had about 30 tabs open.

Today I tried Firefox about:memory "Minimize Memory Usage" several times, and it was largely ineffective.

I did a "create memory dump file" of one 5+GB bloated thread using task manager, but can't find a way to upload the compressed archive with this report for analysis. Finding a way to report this issue was quite a challenge. It seems most help avenues are now missing/moved, and other reports of this type of issue are "Archived".

I tried killing the 2 bloated Firefox threads and checked for tabs which might be missing or malfunctioning. Everything continued to run normally while more than 10GB of memory was returned to system use. Leaving these bloated threads overnight doesn't improve anything, in fact I can often get up and find my machine is completely out of memory because Firefox consumed it all. My smallest machines have 16GB RAM.

These memory issues aren't new. I've been reporting them off and on for more than a decade. They get better for a few months after reporting, then they get bad again in a few more months. The battle to get memory leaks fixed is continuous while Firefox springs more leaks.

I'd like to give you the memory image I generated so you'll at least have some real data to look at and analyze for this report.

The attached task manager snapshot image is a very minor example of this issue. The numbers keep increasing like there are one or more large memory leaks.

Hello, I cannot get videos to go into full screen in FF as they used to before latest update. Tested on various sites. There are no controls shown on YouTube unless i either hide the taskbar or scroll down both of which is a nuisance. On some sites the task bar stays at the bottom which it didn't used to do. link text

I frequently need to access a Hi-Fi device on my local ethernet network from https://www.skytune.net For example ... http://192.168.1.68/ or http://192.168.1.62/ (The last 2 digits of the IP change from time to time)

Recently, I keep getting unnecessary security alerts - Any idea why? I have use https only disabled.

I could be with skytune's certificate. I have done everything I can to bypass these errors.

The Disable Protection For Now option seems to be unavailable if the latest Firefox.

I normally have multiple FF windows open on multiple desktops. After a restart all of a sudden every time I create a new desktop, FF duplicates browser. If I open a new FF Window it will automatically appear across all open desktops.

Tried pretty much everything: Multiple restarts Cleared Cache Refresh Firefox General Settings changes

FF 119.01 Monterey 12.6.6

Any thoughts appreciated

Is there a Firefox setting that automatically clears cookies? When I turned my computer on, it had been cleared of cookies since the last time I had it on a few hours ago, but I didn't do it. No one else here to use the computer but me. I don't want cookies cleared automatically. How do I change it back to manual? I use Firefox Browser 120.0

thank you

I have been receiving the following error code 'PR_END_OF_FILE_ERROR' on several website on my Firefox browser. Sometime, not all the time, I get the same error message while trying to use YouTube, while other times the site loads but says that I am offline and no internet connection. I have done all of the fixes that they say to use online and nothing seems to work. YouTube will occasionally work but none of the thumbnails will show up. Then there are other site that work fine.

I switched from Chrome to Firefox a couple weeks ago. Everything seemed to go fine at first but now my laptop is not syncing bookmarks with my Android phone or desktop PC. My about:sync-log is filled with errors every few minutes. When browsing through them, I see a common reference saying the master password is locked and it can't sync but the primary password option is unchecked in my settings. Interestingly, nothing happens when I click sign out under my profile and I have to go to the Mozilla manage account screen and sign out from there. Sometimes when I do that and log back in, bookmarks will sync once and then error out again. Any assistance you can provide would be appreciated.

Hi there,

I just got some message saying that my Firefox version needed to be updated and by hastily taping on the ok button I did it without noticing that it had done it to a newer version no longer supported by my Mac OS.

I wanted to go back to the most recent version still supported by El Capitan 10.11.6, so I installed again the 78.10.0ESR and now all my browsing history from many years back is gone.

Could you please help me getting my history back?

Going through internet through several hours didn't bring any good solution to my problem.

Thanks on advance.

My Simple Tab Groups disappeared after one of the recent Firefox updates. This has happened before. Now, after considerable time rebuilding my simple tab groups, when I get a notification that a new version of Firefox is available, I dismiss it. I am afraid of losing them again.

Have you heard this before? Has the issue been addressed? Is it fixed? Is it safe to update without losing the tab groups? Is there a way to back them up and restore them later if they crash?

Why is

"m@moz-extension://7010c318-ea8f-4(?)"  populating in my Password Managers log-Ins whose websites require passwords ? This prevents log in information from auto populating?
                                      Thank You to the community and anyone kind enough to help.

Suddenly stopped receiving emails on my blueyonder account 6 days ago. I can receive them fine on my iphone and ipad and with virgins web mail site but nothing on Thunderbird. It keeps asking for my password but does not recognise anything that i type in. Also will not send from blueyonder. My gmail account works fine. Please help

I recently updated to FF 119.0.1. I am finding that URL completion in the address bar is kind of random. In FF 118 and earlier, URLs were completed predictably, and it was pretty clear that they were based on a) bookmarks and b) frequency of use. Now, it seems like the frequency info is lost every time I restart FF. In that case, I might expect that the URL offered would be from the oldest bookmark or maybe the first in alphabetical order or something predictable, but it isn't. It seems to me to be random, and it is very annoying.

Is this a new bug, or is there perhaps a new setting that I can change to stop the madness?

For relevant settings, I have:

 - Provide search suggestion: checked
 - When using address bar, suggest: browsing history and bookmarks are checked, nothing else
 - I'm using Custom History settings: Remember browsing and download history is checked, Clear history when Firefox closes is checked. 

I have used these settings for years in previous versions of FF, and there hasn't been a problem until now.

Thanks!

Hi, i'm a new firefox user and I've looked online for the last hour looking for a fix, but nothing. I have 2 monitors and when I click from one to the other or alt + tab, all my tabs become darkened, from white to having faded / being much darker, I'd want to not have that, is there a way?

Example of not darked darkened / faded tabs / darkened:

The netflix, giazo, imdb and youtube tab is not darkened. (not alt tabbed or clicked on second monitor). The other one is darkened, alt tabbed, clicked on second monitor.

I also posted on reddit, since i can't add more pictures, for better understanding, I will share here. Thank you.

https://www.reddit.com/r/firefox/comments/1871klh/firefox_tabs_become_darkened_when_clicking_on_2nd/

Microsoft has placed an ad in mail page to purchase 365 Pilot-Personalized email, I already own 365 program, because I do not push the Buy Button they refused to remove the Ad therefore I cannot open my email. Somebody told me that Firefox is in collaboration with Microsoft,please see if you remove the Ad from email page-it has been a nightmare I have to manure to to ge some of my emails. Please,help. Thank, you respond to scanland2@hotmail.com

Suddenly stopped receiving emails on my blueyonder account 6 days ago. I can receive them fine on my iphone and ipad and with virgins web mail site but nothing on Thunderbird. It keeps asking for my password but does not recognise anything that i type in. Also will not send from blueyonder. My gmail account works fine. Please help