Firefox Community Forum

Hello,

I have been testing all browsers I use (Firefox, Chrome, Edge) on Cloudflare Post-Quantum Key Agreement to verify PQC support. They all support the X25519MLKEM768 hybrid scheme (i.e. Cloudflare web page returns "You are using X25519MLKEM768 which is post-quantum secure").

The issue: When I run the test in Firefox multiple times by doing repeated hard refreshes (Ctrl+Shift+R), quite often the result is "You are using X25519 which is not post-quantum secure". Sometimes the very first run after opening Firefox gives the X25519 (failing) result. "Often" varies. Sometimes it's around 10 fails out of 50 tests, other times it's 1 out of 50. It seems random.

I have read that sometimes networking equipment or even ISPs can be the cause of PQC requests falling back to non-PQC due to the long keys in PQC, but I do not see this intermittent issue with Chrome or Edge on the same computer/network/ISP as Firefox. I have not seen a single failure so far on those two browsers. The only variable I am aware of is the web browser.

I also tried connecting to a cellular hotspot as well as disabling my Norton 360 firewall and the results are the same as above.

Looking for help to resolve this issue. Thanks.

hello dear Please can you review my addons (extensions) for three days to activate my eyes, but no epidemics

https://addons.mozilla.org/en-US/developers/addon/js-deep-scraper-pro/

Отправил новую версию своего расширения (Keycure) на проверку 28.04.2026, прошло уже 9 дней. При этом ранее в поддержке заявляли, что проверка длиться не более 5 дней. Просьба разъяснить ситуацию.

С уважением, разработчик Real1k.

Love Firefox by the way... So, autocomplete in the search bar is often helpful, don't get me wrong, but it redefines the delete/backspace key to be context-sensitive. Now, sometimes it does what I expect and backs up one, erasing the character I just typed. However when autocomplete ghost text is present, that same key removes the ghost text only, leaving the character I'm intending to remove. This is enormously inconvenient as I now must watch to see what autocomplete is doing and adjust my behavior to comply. Were I designing I would not make the delete key dual purpose context sensitive, instead I would do both at the same time! Delete what I just typed and remove the ghost text. Safari started this, I complained and of course got no response. Subsequently I noticed the same behavior in Firefox. My suggestion, request, is that search delete key behavior not be decided for me. Either make this Safari behavior a settings option, by default is OK, so that I can choose, or (my preference) delete both ghost and previous character with a single keystroke! Best regards and keep up the good work. Dave

Issue persists on Incognito Mode and it goes away if I use different browser.

Since 2 days issue like this happened and it is retroactive meaning all previous conversations are also blank, all replies of chatgpt are blank except replies with image generation, those are fine.

Before you recommend me to do something please keep in mind that Incognito itself does not help.

I am able to share that chat, paste it in my firefox and page is blank. https://chatgpt.com/s/t_69f4b354cc188191a7959c2d443fed9d

I can use this adress on different browser and it works fine

While submitting online forms for opting out of data brokers getting the following error: Invalid Turnstile captcha response. Using Windows 10 and latest Firefox, tried putting Firefox in Troubleshooting Mode which runs without extensions and searched for online solutions, but no help.

Richard

Hello! I was just flushing my cache and i saw this number... o+I'm just curious how that could be possible? And where has those data been stored? I don't have that space...

I want to keep the original profile but the process is confusing to me. Can you tell me a simple way to keep the original profile or else set the original for me.

Thanks

Boyd Proctor

I received an email that said my account would be closed in 7 days unless I signed in.

I leave my Mozilla tabs permanently open and use them every day. I tried to sign in as instructed and got an "unknown error" about 3 times. Then I was sent to a page talking about Windows 10. I have the extension; that's not a problem for me.

Closing Mozilla and possibly losing all those open tabs would be a BIG problem. Evidently I'm signed in now. I hope everything is OK with my Mozilla account.

Lately, on certain websites, like Fox News - I open a tab in a new link and it just spins.

Today, I just tried to register an account with a glass company, and I hit the button to register, and nothing happened.

Yesterday on a different site, I went to place an order, and everything grayed out and it just stayed like that.

What do I need to adjust in order for this to stop happening?

Thanks! Shari Blauner

FYI I was having issues signing onto my citizens online checking account and also signing onto my email account with comcast. After a while I disabled the NOSCRIPT extension which solved both issues. I believe this problem may have coincided with release 150.2

It is impossible to access a certain website using Firefox mobile. Edge, Chrome and safari work fine. I tried to turn protection off but it makes no difference. Why is this happening? Site is www.hlc.bike a large b2b distributor in the cycling world.

Been like this ever since I installed FF mobile.

после обновления в панели инструментов появилась вкладка профили и она мне даром не нужна но хуже всего что теперь файрфокс каждый раз перед запуском заставляет выбирать профиль и ни какие настройки не помогают! что только не пробовал все бесполезно -- вечно выскакиевает это окно с выбором профиля! какой [edited] мог такое придумать??? и как избавится от эт ого [edited]!!! мне нужен обычный браузер каким он был до версии 150 без [edited] вкладок и [edited] ИИ

I'm a decades long time Firefox user, and I always keep Firefox updated automatically to whatever is the current version. I've never had any substantial issues with Firefox in the past, but recently I've encountered some rather drastic issues.

Background: I'm ex-IT, so I tend to be ultra-conscientious about security and performance updates all across my system. I'm also highly alert for any signs that my system or apps might be compromised in any way.

Recently, I started noticing that I was unable to scroll with my keypad or keyboard on certain sub-windows and certain pop-ups in some web sites (not all). I could scroll these sub-windows/pop-ups only by touch screen, and until today that has always worked. I've been using this workaround, because I haven't had time to really look into the issue. Most sites worked fine, but many would not.

Today, however, I logged into what I know to be a legitimate web site, https://blueshieldca.com, for some important information, but this time I found I was unable to scroll ANYthing on the site using my keypad, keyboard, or touch screen. I could change pages through the on-site menus, but couldn't navigate further at all on any page. I can see that there is more information cut off at the bottom of the page, but I simply can't scroll the page to view it. I almost never use MS Edge browser, but I tried it today, and I'm not having the same problem using Edge.

I'm also having a slightly different, but similar (related?), Firefox issue with the typical cookie-settings-preferences prompts that appear initially on most web sites. Any time I try to arrow over the cookie prompts, they immediately disappear. I'm completely unable to accept, change, or set cookie preferences on any sites.

I've reviewed all my settings in Firefox and all the add-ons I use. In Firefox itself, I run the following extensions: Brave (default search), DuckDuckGo Privacy Essentials, Ghostery Private Search for Firefox, Malwarebytes Browser Guard, Privacy Badger, and Express VPN (disabled) - I do not run any browser-specific VPN, but I always use Nord VPN on my system. The configuration options are overwhelming, and in spite of investigating every avenue I can think of, I haven't been able to find either a cause or a fix. I'm sure hoping you guys can help me figure this out!

My system is Windows 11 Home (25H2), 64-Bit, on a DELL XPS 13, 32GB RAM, 1TB SSD drive (1/3 free), about 3 years old. In addition to the browser-specific security software mentioned above, I run Bitdefender Security. I haven't made any changes or specific updates to any apps that I can link to the inception of this problem.

Any ideas will be greatly appreciated!

I just installed the new built-in VPN - and it appears to show as running in my Mozilla Accounts page (???).

HOWEVER, that is the only place I see it!!

Mozilla account Connected Services

Mozilla VPN 17 hours ago

No icon/display panel anywhere (not showing in Customization of toolbar option either) to see usage, turn on/off, etc.??

Hello,

We have an issue : we reinstalled windows 11 on a machine and thereby lost the account login used to sync Firefox. No way to recover it (we went as far fas as using file recovery tools but no luck).

Is there a way to recover only the account login ? No need for the password. I could provide the IP of the computer in question (it is a professional IP, not shared).

Many thanks in advance for any help !!!

Firefox on macOS. After most recent update, when I open new tabs I get

Oops, something went wrong loading this content. Refresh and try again

I went to settings to make sure Firefox Home was the default loaded on New Tabs, which it is. How do I fix this?

Moderator note: This question has been edited to correct the formatting and correct the OS mention.