Firefox Community Forum

Youtube just does not run well on the firefox browser, I have had this issue on my pc, as well as my laptop. Twitch, piracy streaming sites, 9anime all work fine this problem with loading and buffering is exclusive to youtube. I have tried resetting my firefox settings, changing the values for load times and resource usage in about:config and none of these have fixed my youtube.I have tried multiple fixes I've been recommenced by online forms. I have switched my user agent to make youtube think I am using chrome, I have disabled and removed all of my extensions including ublock origin, and loading youtube remains painfully slow. In fact, disabling adblock makes the load times even slower.

Also responding to my post with "hmmm durrr it works just fine for me" does not help anybody, stfu.

Hi everyone

I used Refresh Firefox option and it created "Old Firefox Data" folder on my desktop.

Awesome stuff. Sadly I cant get rid of it, here is why:

1. At first it said that the folder is used by another program and I cant delete it because of that. Cool, I decided to uninstall Firefox and make a clean install, so I have space to delete the folder too.

2. Long story short, it didnt work. I removed Firefox and tried to delete that folder, but wait for it, yeah I cant because I need permission from MYSELF. Awesome stuff.

3. I decided to use safe mode, so I used run command to run msconfig and I changed it to boot in to safe mode. But wait for it! YES! Its bugged and I cant login in safe mode, because pin is useless and it doesnt give me option to use password, so after hour of various things I got back to my normal mode via CMD commands. THANK YOU MICROSOFT.

4. So now Im stuck with the lovely "Old Firefox Data" folder, which cant be removed normally, neither in safe mode and wait for it! NEITHER WITH ADMIN CMD, not even the takeown /f "Old Firefox Data" /r command. THANK YOU MOZILLA!

So is there someone knowledgeable enough to help me to get rid of that folder pretty please? Like really a lot please.

I have no idea what happened, but i was changing settings on my PC and suddenly i was logged out and all my browser data, bookmarks, passwords etc were gone. I dont know if i clicked the wrong button or what but everything is gone. I still have my data on my phone, and can access my passwords and such but I dont know how to get the browser data from my phone onto my PC

Please, I have many important passwords and bookmarks that I need to be able to recover.

Be nice. Our volunteers are Mozilla users just like you, who take the time out of their day to help.

Be descriptive. Saying “playing video on YouTube is always choppy” will help us understand the issue better than saying “something is wrong” or “the app is bro ken”.

Follow through. Sometimes, our volunteers would ask you for more information or to test out certain scenarios. The sooner you can do this, the sooner they would know how to fix it.

I think that this recent update removed all of my tabs and tab windows, it has done this before and I don't understand why, I have the old update session file still (The 11/11/2025 One) and I tried to use that one to bring the tabs back by putting the file in the sessionstore-backup folder with no other file in it, but they didn't come back. I am genuinely confused as to why it doesn't work, I have renamed and deleted sessionstore.jsonzl4 files but it still comes up as a new session.

The site chatgpt.com demands challenges.cloudflare.com to be allowed. I visited this site and allowed cookies. Then it worked. However, the chatgpt.com site froze and when I reloaded it, I had to start all over again. This time, the request for challenges.cloudflare.com remains, even though a URL attachment is reloaded every few seconds. The same thing happens on the openai.com site and several other. I'm using windows 7.1 and ESET Smart Security Premium.

Meldung: Lassen Sie challenges.cloudflare.com zu, um fortzufahren. Image Siehe Bild Click auf Erlauben hat keine Auswirkung

I am getting the following message on a couple of different website pages today. "Please unblock challenges.cloudflare.com to proceed." I don't know what this means! What do I do to unblock/fix this, please?

Thanks, Paul

I hope I sent this to the right place.

PC is using Windows 11, latest updates. I have signed in to Mozilla Monitor many times in the last hour, but "Upgrade to Premium" does not appear in the upper-right corner as several help websites say it should. I cleared all cookies and turned Enhanced Tracking Protection off for the site, no help. I restarted Firefox - it's now at release 145.0.1 (64-bit), no help. Any other ideas? Thanx.

Hi, after latest update just now, the browsers uses up to 45gb of ram within a few minutes! Not sure what it is, I am on MACOS Sequia Version 15.6.1 (24G90) macbook pro M1

I love Firefox and generally really appreciate the way y'all operate as a company and developer.

However, I really don't like this new function to add tabs to a group. Since it rolled out, I'm always adding tabs into groups when I don't mean to. Really, it's creating a group almost every time I move a tab around. If I delete the group, it's just more clicks and distractions to deal with.

In the past, when you've rolled out new features like this, you've also made it very easy to turn off any new feature we don't like. But I can't figure out how to turn this off. Is it possible?

Thanks for your help.