Diễn đàn hỗ trợ Firefox

Why when I search ABOUT:BLANK TAB, an empty page displays instead of the site I am searching for? I then have to go back and try again and again until it finally displays.

Cleared Cache, searched for extensions and not sure what to look for...they were verified by apple to be "normal". What else? Macbook Air 2023 running Sonoma 14.8.1

I have noticed that since around Friday, April 24th, 2026, that Youtube videos will sometimes refuse to load properly. The page for the video will come up, but buttons on the page will not load, and nor will the video. This started happening around mid-day, when prior to it, things had been fine. At first I thought it might be tied into the 'ambient mode' option on Youtube itself., But even after shutting that off, I found it was still happening at ranodm.

Is this something new Yotube is doing in their continued (idiotic) fight against ad blockers, or is there an actual glitch in the browser or, more likely, a glitch in Youtube? Like I said, this seems to occur at random and I can't trace the cause for it. I'll include a screenshot of what I'm seeing. But if anyone knows what's happening here, I'd appreciate it.

I should add that I am on Windows 11 and using the new version 150.0 for Firefox. (Congrats on that, by the way.)

I'll be honest, I keep hearing some other browser can block youtube ads innately. (Brave, I think it was called?) and while the idea is cool, I'm not giving up a browser I've used for over 20 years for it. If Firefox can find a way to implement a similar means of blocking Youtube ads innately, I;d love it. But for now, I just wanna know what the devil is happening with the site. Can anyone help?

I understand that VPN was progressive roll out, but I have been able to successfully use it for the last two months. Today I upgraded to version 151.0.4 and the VPN icon was no longer up in the toolbar. I thought maybe I did something wrong and went back to customize and put it back on, but it's just not there anymore.

Did you decide to roll it back without warning?

For over a year, my browser occasionally loses connectivity. It may work for 3 hours or 3 days, but inevitably new tabs will stop working and then slowly the others will stop as well. When this happens, none of my other browsers are impacted. They work fine. It is only Firefox. The only solution is to close everything and lose all my work.

Once I do that and restart Firefox, I receive an error message telling me I am using an older version of Firefox that is not compatible with my profile. The only solution that brings me back to the best starting place is to re-install Firefox.

My company IT spent 3 days trying to find the problem and couldn't. I have uninstalled and reinstalled so many times. All extensions are turned off, as are the two add-ons. I have been using Firefox for over a decade and prefer it to all other browsers, but I need to find a solution or I am going to have to move on. Help!!!

All the tabs, in both my profiles are constantly crashing. I cannot keep at a task for more than a few minutes without needing to restart the tab. Is this a setting problem? I've cleared the cache, and reset Firefox, to no avail. Thank you for any relevant advice and/or assistance.

Hi this can anyone shed anylight on this please? I was using Facebook earlier today with no problem then now it won't run nor open yet it runs fine in Google Chrome. I've cleared out the Cookies ect and re-tried but its not pitching anything.

Many thanks Rob

When uploading a file to attach to another app...the upload window opens up in dark mode. I don't like this and I did not change anything but it happens repeatedly. i have checked all options in settings to make sure the light mode is checked. Why is this happening. i did not change anything. Please advise. Thanks

I just updated Firefox to version 151.0. The release notes say:

"Private Browsing Mode now allows you to instantly clear all data from your current session without closing the entire window. When you select the End Private Session button (the fire icon) to the right of the URL bar, Firefox will ask you to confirm to clear your session. Once confirmed, it will wipe all of your private browsing data and open a fresh new Private Browsing Mode session for you."

There is no "fire icon" in my toolbar in private browsing windows. I have tried resetting my toolbar to defaults, but that didn't help. I re-installed Firefox 151.0, but that didn't help. I re-booted my system, but that didn't help. I have run out of ideas.

Can anyone tell me how to get this button to appear in the toolbar in private browsing sessions?

I'm using Windows 11 25H2 on a Dell XPS 9630 tower computer.

Thanks, Bill

I have been using Firefox profiles for years, long before the announcement of the new profiles UI. The new profiles UI launhed with FF 144. I'm on the latest version, which is 149.0.2 and I still don't have the new UI. Specifically, I do not see my profiles in the new UI.

When FF launches I see the new UI but my profiles are nowhere to be see as you can see in the screenshots:

https://postimg.cc/gallery/tFXz00m

I have 2 profiles and they each have their own name.

Instead I am presented with 2 option "Original Profile" and "create new Profile". When I click on orignal profile, Firefox opens my default profiles which has its own original name. However, when go throught the new UI o switch profiles, I do not see my other profile. Moreover, if I click manage profiles, I don't see either of my profiles.

The only way I am able to launch my 2nd profile is the old fashiong via "about:profiles".

Why can't I see my profiles in the new UI?

On my 2nd profile, I don't even have the new profiles UI.

Why dont't I have the new profiles UI months after you launched it?

Please help!

Hello there's just been an update on my laptop for Firefox.. and now I'm logged out of every account I had opened on my browsers!! I googled this and seemingly this problem has happened before with Firefox..

when accessing websites where Cloudfare is part of the sequence the page hangs on cloudfare and the page is not displayed. Every time data is transferred through cloudfare the page hangs on cloudfare rending the search useless.

Please help me release the cookie for eBird.org sonograms so that they are not blocked or tell me how to do it in plain, non-jargon English step by step. Nobody has answered my requests for help with this. My advice from eBird was to use Edge or Chrome instead, which I don't want to do, especially. Surely there must be someone at Mozilla who uses eBird who can understand how frustrating this is.