I-Firefox Community Forum

I am using Firefox on Windows 11, in the process of switching from Chrome.

I run Cockpit (https://cockpit-project.org/) on web servers that I manage, and when I log into it on Firefox the screen flickers constantly, making it unusable.

There is no issue with any other web sites I have visited, and I can still use Cockpit when in Chrome. So ay suggestions on how to troubleshoot and resolve the issue with Cockpit and Firefox?

...and getting this message.....Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

Firefox displays garbled characters, but other browsers do not display garbled characters on the same website.I'm sure it's not a website issue, because more than one website is experiencing garbled text problems. We tried solutions found online, but none of them worked, including completely uninstalling and reinstalling Firefox.

when attempting to login to 53.com credentials are entered, login pressed, login flashes but no login.... as if there is a pop up or something that should occur and doesn't. On edge it works fine, press login and a clock like symbol overlays the login button and then you are in....

v148, Win 10

The site froze while playing a video. It happened multiple times. Is anyone else reporting this kind of behavior on Instagram. I closed the tab, but cpu stress-like side effects remained for a while.

Here's the error page I get from O'reilley Auto Parts when searching. (I don't get this error when on O'relley com, but ONLY when searching for a part and ONLY with Firefox on my desktop. This started just a few months ago. All ad blocks and U Block Origin are disabled):

https://www.oreillyauto.com/search/v/a/4649/automotive-car-1988-pontiac-fiero?q=oil+filter

Access Denied You don't have permission to access "http://www.oreillyauto.com/search/v/a/4649/automotive-car-1988-pontiac-fiero?" on this server.

Reference #18.8aa03b17.1772750536.8978d2fa

https://errors.edgesuite.net/18.8aa03b17.1772750536.8978d2fa

Hello,

I am experiencing an issue with Firefox where some websites display a message saying that the internet connection cannot be established and that I am offline, even though I am connected to the internet.

My internet connection is working normally. Other websites load without problems, and the same websites also work correctly in other browsers such as Google Chrome.

However, in Firefox certain sites do not load. For example, YouTube and YouTube Music show an error message indicating that I am offline. I have also noticed this issue on a few other websites.

Because the same pages work normally in other browsers, it seems to be related specifically to Firefox.

Could you please help me understand what might be causing this issue or how I can fix it?

Thank you.

I use Firefox on a Mac to access Brightspace for my classes. I also use Grammarly. When copying text from the Grammarly widgets and pasting it into the Brightspace HTML editor, the text is stripped of hard returns, causing paragraphs to collapse without any breaks between them.

I have tried pasting as unformatted text, and the issue persists. This issue does not occur in Chrome, so I suspect it is due to how Firefox handles clipboard data. I have not found a workaround or resolution for this.

Hi there,

I'm having a strange issue with a website I use for crypto trading. On Firefox the page layout looks broken and some sections overlap or don't load correctly.

The site is paribu.com https://www.paribu.com . When I open the same page in Chrome everything looks normal and the layout loads properly.

I tried refreshing and disabling a few extensions but the issue still happens in Firefox. Has anyone experienced something similar or knows what might cause this?

Thanks.

WebRTC DataChannel worked perfectly in Firefox 147 and earlier, but after upgrading to Firefox 148, send() throws InvalidStateError immediately after onopen fires. Same code works in Chrome and previous Firefox versions.

const dataChannel = pc.createDataChannel('kvsDataChannel', {

   ordered: true,
   maxPacketLifeTime: 3000

});

dataChannel.onopen = () => {

   console.log('open, state:', dataChannel.readyState); // Shows "open"
   try {
       dataChannel.send('hello'); // Throws InvalidStateError
   } catch (e) {
       console.error('Failed:', e.name, e.message);
   }

};

Error: InvalidStateError: An attempt was made to use an object that is not, or is no longer, usable

Environment: Firefox 148.0: Fails OS: Windows 11 Firefox 147 and earlier: Works

Question: What changed in Firefox 148 that broke DataChannel send()? Any workaround while this gets fixed?

I had a mainstream company website start some of this months ago and now I seem to be getting more and more similar connection problems for other sites. My pc works just fine on nearly every other site so I just don't see it as my pc. I asked my ip and although I question whether they will help much but they did say nothing from their side. Yes I am up to date on ffox and OS. Clearing cookies does nothing. Some sites just say access denied, some will just never load or have some bs 'oops' or 'something went wrong' message. Chrome seems to mostly work but it may be goofy getting the sites working. These all used to work fine before. It does have the same or similar problem using other pc's on the same network. I can find nothing in my modem/router that is blocking anything. How do I find out what is wrong?

Firefox 148 Xubuntu 24.04.4

When accessing Google Docs, I can right-click and successfully Cut and Copy from the pop-up menu, but when I attempt to right-click paste, Docs pops up the message shown in the attached image. Ctrl-V works, but clearly Google Docs understands what is being requested and simply will not perform the operation, which is very annoying. Is there any way to get Google Docs to perform the mouse-based paste?

Here are all the current clipboard settings:

browser.contentanalysis.interception_point.clipboard.enabled true browser.contentanalysis.interception_point.clipboard.plain_text_only true browser.tabs.searchclipboardfor.middleclick true browser.urlbar.clipboard.featureGate false browser.urlbar.suggest.clipboard true clipboard.autocopy true clipboard.copyPrivateDataToClipboardCloudOrHistory false devtools.screenshot.clipboard.enabled false dom.event.clipboardevents.enabled true dom.events.testing.asyncClipboard false widget.clipboard.use-cached-data.enabled false widget.gtk.clipboard_timeout_ms 1000

Ok, This latest version of Firefox is really Bad. It hangs on a lot of my online login accounts. Important things like my Amazon Chase Banking App. My Subscription access to HeyGen logs in for example but it won't work with features like creating your avatar. There is a LOT wrong with the current build.

Hello, I've been getting this press and hold authentication the last several months I press and hold then release when the check mark shows, and it still won't let me into the webpages. Happens sporadically, real estate, walmart, and some others. Attached is a sample.

Can you tell me how I can stop it?

Thanks

All of the sudden can't use Hotmail through Firefox I have tried clearing cache, making sure clocks are correct etc.

This is the error page that I get. How can I fix?

UTC Date: 2026-03-03T14:58:14.746Z Client Id: C04E3F29FD7245519575F2719944C1F7 Session Id: e5d1dce8-796f-466c-a0b0-e06785904ba1 Client Version: 20260220002.06 BootResult: fail Back Filled Errors: None err: TypeError: TrustedTypePolicyFactory.createPolicy: Tried to create a second default policy esrc: Script et: ClientError estack: 734392@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:39:147215 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 282916@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:21:21492 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 691114@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:39:61327 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 835041@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:42:50184 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 950733@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:42:220063 I@https://res.public.onecdn.static.microsof

Firefox does not react to links.. This has been happening in several web pages. Links that work on Chrome and Safari do not work on Firefox. This is the last example, try to click on the different shoe views on this page: https://www.skechers.com/uno---suited-on-air/183004_NVY.html ...