I GET THIS PAGE WHEN I CLICK ON ALL MOST EVERYTHING. GOVERMENT WEB SITES. COMMON WEB SITES ETC.
Bad Request
Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.
Bad Request
Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.
Bad Request
Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.
Firefox has been my browser of choice for well over 20 years. I have a game I play every day (from FaceBook) just this week when I try to go to it on my laptop - it says … (tuilleadh eolais)
Firefox has been my browser of choice for well over 20 years. I have a game I play every day (from FaceBook) just this week when I try to go to it on my laptop - it says your browser does not support WebGL. it has always opened using Firefox - this is a new error message. and the computer is only 5 months old and has Windows 11 on it. I do not want to switch to Google or Edge.
Like I said - opening the app worked every day up until about a week ago. What gives?
Web pages that are supposed to contain emojis are blank. I can highlight where emojis are supposed to be shown but the actual images of the emojis aren't there. about:con… (tuilleadh eolais)
Web pages that are supposed to contain emojis are blank. I can highlight where emojis are supposed to be shown but the actual images of the emojis aren't there. about:config font.name-list.emoji correctly contains "Apple Color Emoji" If it is relevant, this has been a bug/issue that has persisted for a couple of months now (can't name an exact date).
Dear Firefox Every few days the sidebar reappears. I DO NOT WANT to use the AI chatbot. Having tabs from other devices is all that useful to me. It feels like something t… (tuilleadh eolais)
Dear Firefox
Every few days the sidebar reappears.
I DO NOT WANT to use the AI chatbot.
Having tabs from other devices is all that useful to me. It feels like something that's just there to justify the AI chatbot bar existing.
I can access bookmarks and history from the toolbar. Don't need a new sidebar for that. They don't justify your stupid AI chatbot bar.
I DO NOT WANT TO USE YOUR AI CHATBOT. YOUR SIDEBAR IS LITERRALY NO DIFFERENT FROM A POP UP ADVERT. SO STOP HAVING IT POP UP AGAIN AND AGAIN.
When the Global Privacy Control request is checked (https://support.mozilla.org/en-US/kb/global-privacy-control?as=u&utm_source=inproduct) a persistent bubble appears… (tuilleadh eolais)
When the Global Privacy Control request is checked (https://support.mozilla.org/en-US/kb/global-privacy-control?as=u&utm_source=inproduct) a persistent bubble appears at the bottom of the page indicating the request has been accepted. The bubble is annoying. Is there a way to continue to use this feature without the bubble appearing?
I changed email adress 3 month ago and didn't update my Firefox profile. With only that adress registered (no secondary email) I cannot change to a new one or add seconda… (tuilleadh eolais)
I changed email adress 3 month ago and didn't update my Firefox profile. With only that adress registered (no secondary email) I cannot change to a new one or add secondary because a confirmation mail are sent to my old account, that are deleted. Are there any way to change email, add phone number or .... without access to the old email account?
Device name DESK Processor AMD Ryzen 3 3100 4-Core Processor (3.59 GHz) Installed RAM 16.0 GB System type 64-bit operating system, x64-based processor Editi… (tuilleadh eolais)
Device name DESK Processor AMD Ryzen 3 3100 4-Core Processor (3.59 GHz) Installed RAM 16.0 GB System type 64-bit operating system, x64-based processor
Edition Windows 11 Home Version 25H2 Installed on 12/01/2026 OS build 26200.7623 Experience Windows Feature Experience Pack 1000.26100.275.0
Hello,
I have two windows in Firefox that I would like to tile so that I can compare the contents of each. Is this possible ? Regards
pyor66
Since latest upgrade (1/16/2026) I cannot log in to Outlook email. This is specific to Firefox 147.0.1 (Chrome and Pop Peeper logins to Outlook work fine). I tried cleari… (tuilleadh eolais)
Since latest upgrade (1/16/2026) I cannot log in to Outlook email. This is specific to Firefox 147.0.1 (Chrome and Pop Peeper logins to Outlook work fine). I tried clearing cache, updating, restarting, rebooting, trouble-shooting mode, private window etc. to no avail. I get 400 error from Outlook.
[article] This article claims there is an "AI Controls" section in Settings. This is not found in v 147.03 (up to date) for Mac. Please let me know how to disable all AI … (tuilleadh eolais)
[article] This article claims there is an "AI Controls" section in Settings. This is not found in v 147.03 (up to date) for Mac. Please let me know how to disable all AI in Firefox.
How do I access ad blocker?
Recently Mint upgraded my FF to v147 - possibly relevant, possibly not. There's no post mentioning anyone having this issue on the Mint forum though. In my Settings, "Op… (tuilleadh eolais)
Recently Mint upgraded my FF to v147 - possibly relevant, possibly not. There's no post mentioning anyone having this issue on the Mint forum though.
In my Settings, "Open previous windows and tabs" is definitely enabled, but it doesn't happen. I only get my homepage custom URLs.
I went into troubleshooting mode and FF then behaves.
So I figured the issue must be with an extension - but I disabled all my extensions, and it doesn't help. Only going full troubleshooting mode fixes it.
What do I do next please?
When i try to connect to some websites, firefàx prompts "error 502 bad gateway" the same websites work on EDge ! Unable to connect Firefox can't establish a connection t… (tuilleadh eolais)
When i try to connect to some websites, firefàx prompts "error 502 bad gateway" the same websites work on EDge !
Unable to connect
Firefox can't establish a connection to the server atxxxxxxxxx
Error code: 502 Bad Gateway
. The site could be temporarily unavailable or too busy. Try again in a few moments. . If you are unable to load any pages, check your computer's network connection. . If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.
Try Again
Why do I keep getting Error 403 Forbidden message when I try to reach website I have used successfully before?
I have the latest version of Firefox. I still keep getting the prompts to download the latest version. When I go to system info, it shows I have the latest version it i… (tuilleadh eolais)
I have the latest version of Firefox. I still keep getting the prompts to download the latest version. When I go to system info, it shows I have the latest version it is asking me to download. When I do a manual search for the latest version, it always says it failed to search for the latest download.
How Do I Clear Cache And Cookies?
I accidentally typed my protonmail password into the field of my username/mail address. I don't remember what more I did (propably answered yes to save) but now there is … (tuilleadh eolais)
I accidentally typed my protonmail password into the field of my username/mail address. I don't remember what more I did (propably answered yes to save) but now there is as autofilled my password for username always I open my Protonmail account. I am using Firefox as browser (should be the newest version) while Emailing.
I tried to delete autofill of Firefox according to the next advise: "go to Settings > Privacy & Security, scroll to "Forms and Autofill," and uncheck "Autofill addresses" to stop saving them"
Then I was astonished. There is no "Forms and Autofill" setting on my Firefox at all!
Protonmail settings didn't help either nor Windows 11 - neither FAQ.
Ilkka
Is there some way to open all tabs on a synced device. I have the list of tabs showing in the sidebar. However, the instruction: "While viewing synced tabs in Sidebar, ri… (tuilleadh eolais)
Is there some way to open all tabs on a synced device. I have the list of tabs showing in the sidebar. However, the instruction: "While viewing synced tabs in Sidebar, right clicking on device name allows you to open all tabs from a device at once." does not work. Right clicking does nothing. Version 147.0.2 (64-bit) in Windows 11. Thank you.
My Hoepage is set to Firefox. In the center of that page is a Search box which I used always. Now when I try to type in it, my cursor shoots up to the top to the ADDRESS … (tuilleadh eolais)
My Hoepage is set to Firefox. In the center of that page is a Search box which I used always. Now when I try to type in it, my cursor shoots up to the top to the ADDRESS bar. I do NOT want to SEARCH from the address bar. I want to search in the Firefox search box. I also have Duckduckgo set up in that search bar. After the last 2 Firefox updates, I can no longer type my search in that box, but can ONLY search in the ADDRESS bar. Please help be restore the use of the Firefox Search box.
sinhala language not in the list of translating languages but sinhala language can use for translated webpages and read them i tried to insert as you instructed but i cou… (tuilleadh eolais)
sinhala language not in the list of translating languages but sinhala language can use for translated webpages and read them i tried to insert as you instructed but i couldn't do it pl. help me to get sinhala language translations