Firefox Support Forum

Hi! I was wondering why nearly every single page these days opens to the message :

"400 Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit. Apache Server at canvas.instructure.com Port 80"

Nearly every link I click on a website refuses to open! It has become impossible to do school work on this browser because I can't open any link on my school website, and nearly every website struggles to open except from google. I know the links work because I copy/paste them into Google Chrome and they open immediately. Truth be told I prefer Firefox and would much rather keep using this browser! I also can't find an update for Firefox so I believe my Browser is up to date (and I know my laptop is up to date and virus free). Is there a fix coming soon? Or a setting I can change to be able to open links? Classes start this week and I'm stuck!

Thanks for your help!

I am unable to login to my Prescription provider's website (which I do every day). Problem started Sunday and still persists.

I am able to login using Chrome, so I know the website is working properly.

Help - I DO NOT want to use Chrome.

Past experience. With just a few tabs open there was a "+" button at the right hand end of the tab bar for a new tab. When the number of tabs got too many (in my case 18) the "+" button was JOINED by a ">" button to be able to see tabs off the right hand end of the toolbar, but still use the new tab button.

Post update to the current version of Firefox, at the point the ">" button appears it is REPLACING the "+" button.

I know there are workarounds, but my "rut" is to use the "+" to get a new tab.

Is there any way of getting it back?

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This was my fix for scrolling not working when hardware acceleration enabled. Upgraded this software product: X-Mouse Button Control (of Highresolution Enterprises) to latest release 2.20.5

for new file types the option to save the default behaviour for future downloads is no longer avaliable for me. Also, the option to set in "Settings -> General -> Files and Applications" does not show any of the new file types.

I've tried re-installing firefox, as well as refreshing but still the same results.

I got a notice that Firefox (and Thunderbird) were updated this morning. Took me an HOUR to find out how to make the miniscule font in my inbox larger. So.. suddenly, new problem.

When I click the Firefox icon to launch the browser, and reopen my tabs, It opens for a millisecond, then closes faster than I can try to read if there is an error. When I click it AGAIN, all my tabs are GONE and I have to search for them manually, which is a royal pain.

Why is this happening? How can I stop it from happening? This is annoying as hell.

Hi. I have problem with firefox account addon. I acidenty remove it from the addon menu(that one on the right up corner in firefox) and i can't find it in addons setings. how can i add it again to addon menu?

firefox is not prompting the primary password login dialog box and not even providing me "saved login"

Even when i tried to open password in settings so that i can manually copy paste them, it ask me to log in first as shown in picture but when i click on login, nothing happens, it does prompt primary password login dialog box.

as shown in picture below, even if i click login, it just does not work.

p.s tried clearing cash and cookies.

From a security / QOL pov I'd like to disable an extension on some websites, and was wondering if there were any methods to do this?

I searched this question first through reddit and the support site and found similar questions with no updates asked between 4-6 years ago, wondering if there's been a method implemented yet or if it's still not possible.

Thanks!

Chrome scrolls to element while Firefox doesn't for this URL with # :

https://www.service-public.fr/particuliers/actualites/A15610#titreChapitre_-5776306477855185115

There is an element with id "titreChapitre_-5776306477855185115" in the page (chapter "Personnes ayant un test de dépistage positif" which means "People who test positive to Covid", Chrome will scroll to this chapter (well, at least 60% of time it auto scrolls to the element) while Firefox will always display the top of the page.

Firefox is slightly better and more similar to Chrome on the english version for some reason : https://www.service-public.fr/particuliers/actualites/A15610?lang=en#titreChapitre_-5634635573997558496

I occasionally use a site (www.zoomcare.com) which does not work properly with Firefox (I've been using Microsoft Edge (Windows 10) to access it). The problem comes when I try to login. I enter my username and password, and that brings up a blank page that does not redirect to anything, so I'm stuck.

Just out of curiousity, I was looking through Advanced Settings, and found security.csp.enableNavigateTo. It has been set to false, but when I set it to true, I am able to successfully login (I still go to the blank page, but after a brief pause, I'm redirected to a logged-in page).

I'd like to know something about the security implications of enabling this property. Is it a bad idea? (Not knowing, I've set it back to false and will continue to use Edge for now).

I have a list of clickable bookmarks that normally displays in the left side panel. It's currently missing. If I click on 'Other bookmarks' it appears to the right but is not pinned and doesn't seem pinnable. How do I get it back to displaying in the left side panel all the time as before? Clicking on 'Bookmarks Toolbar' or 'Bookmarks Menu' doesn't bring it up. I don't see any other options in the side panel nor do I see anything relevant under 'Bookmarks' in the top ribbon menu......? Many thanks and regards Ray

version 117.0 about to update. I am a SQL Server specialist, and know virtually nothing about web servers, browsers etc. I need to access the AZURE Portal in a private window to give access to a legacy login. I am now getting the firefox enable HTML5 Storage (Local and Session) in a private window before I can continue. I can get in fine in chrome without doing anything at all. What do I need to do in words of one syllable, such as go to the 3 bars, find this option, change this to that etc. Apologies, but any developer technical words about the web, or browsers will make my eyes to glaze over! It was all working up to about 1 week ago - new version with new options? Thanks, Clive

I hope this applies here. I tried using the "-p" command fro Librewolf. Wiped out my sessions and settings.

Is there a way to do this in Firefox and or Librewolf?

I can sync my home desktop (Windows 10), home tablet (Windows 11), and phone (Android) just fine, but I am having trouble syncing with my work desktop (Windows 10). As I can work from home, I would like to keep my bookmarks, history, etc. synced.

While at work, when I start Firefox, it says that I am running an older version of Firefox and either need to create a new profile or exit to avoid problems. So I create a new profile, then update to 117, then restart Firefox, and things are fine for a bit. Eventually though, if I exit Firefox, it will go through this cycle again the next time I start Firefox. When I check the version after starting, it says that I am on version 115, even though I already updated to 117. I went into about:profiles I saw that there were several profiles there: default, default-release, then default-release-1, 2, etc., with the most recent number being the one currently in use.

Could this be some sort of organizational setting that is preventing the update from sticking? Is 117 not 'backwards compatible' with 115, so to speak, with regards to syncing? Any way to work around this? Any insights here would be appreciated.

This has been asked here before but I've tried EVERYTHING that was offered that time, none worked.

I've used Firefox since the start, and before, I used Netscape in the 90s. I'm ready to move to another browser forever if I can't fix this. Can anyone help please?

Only thing that worked was dumb workaround of changing my Home URL from https://www.google.com (which takes about 60 seconds to do a search) to https://www.google.com/search?q=BipTunia

The second works. (Was the last search I'd done, it worked, so I used it. Works fast if I delete the word it puts in the search field, do my new search and hit Enter)

I'm on Win 10, latest version (117). Fast computer, no viruses. All other programs closed.

Search on main Google URL works fine with same Google account on other browsers, not Firefox.

I HAVE TRIED ALL OF THESE (WITH NO JOY), plus rebooting Firefox every times;

--Cleared all cache, data and cookies. --Reset Firefox --Tried Firefox in Safe Mode --Signed in with different Google account. --Signed out of Google account. --Reinstalled Firefox --Tried with and without Hardware Acceleration on --Changed default Firefox Theme