Forum d’assistance Firefox

Here is a sample URL that works on Microsoft Edge (current version) and receives an error message on Firefox (115.0.2): https://www.t-mobile.com/home-internet The error received from the web site when using FF is:

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

FF was working with all T-Mobile pages a few months ago and now fails with this same error on most pages.

To test on Edge, I pasted the identical address that failed in FF into Edge and it worked fine so I am confident I am comparing the same web page on the two browsers.

Thanks for your help. Claude

just updated to 115.0.1 on the Mac yesterday and now tradingview website isn't working - i tried adding it as an exception in EnhancedTracking and CookieSiteData like i did with ebay to get it working again but no luck with tradingview... any ideas ? thx

When I click on Profile Directory: Open Directory on the troubleshooting Information page it tries to open in kid3 instead of file manager (Dolphin file manager). Can I change this behaviour. Also happens with Thunderbird. I am using KDE Plasma on Linux. I just can't work this one out. I would be grateful for any suggestions.

Ever since I update Firefox a month or so ago, every time I open the browser it wants to restore my last session. I've went into setting and check it to make sure I did have it on. I even turn it on, rebooted and the took it off and rebooted. Nothing seams to work. Any help?

I have multiple internal websites, which all follow the pattern of [site.one.two] which resolves fine using the internal DNS server i have configured by going to https://site.one.two and through other programs via site.one.two, and all the [one.two] suffixes are blacklisted from being resolved with DoH in firefox, but it still forces a web-search, even with searching from address bar being turned off, instead of resolving through my local DNS server (local server resolves local domain suffixes, anything else gets resolved through cloudflare DNS). I haven't found a fix in any other forums, and there are enough unique internal addresses that manually adding each and [every site.one.two] as an exception would be something i would like to avoid. Is there any way to tell firefox to resolve through DNS first for addresses or domain suffixes?

Somehow this en.softonic nonsense has made it into my windows notifications tab under 'firefox' notifications. How can I get rid of it? I can't find it in the General, Add-on or Extensions settings of Firefox or Windows Uninstall to turn it off or remove it.

How can I get rid of it? I don't want it.

Thanks

The solution for the original Disable F11 (https://support.mozilla.org/en-US/questions/1255696) is no longer working. When the solution is executed from the Browser Console...

doc = Services.wm.getMostRecentWindow("navigator:browser").window.document; if(E=doc.getElementById('key_fullScreen')){E.removeAttribute('keycode');E.removeAttribute('command');}

The return is a reference to "HTLMDocument chrome://browser/content/browser.xhtml" which can be opened up and displays more information.

It used to just come back with something like "Undefined." and then it worked (F11 was disabled for the browser instance). Looks like it just started to not work with this latest version of 115.0 64-bit as this solution has been working for over a couple of years now.

Is there a way to enable this to work in the latest version?

Contrast disappears when I klick 'Login' eg. on 'https://www.elektor.de/'; other browsers are ok. AdGuard on or off makes no difference. Kind Regards [removed email from public]

trying to open 3d model on this site https://teemo.gg/viewer/league-of-legends/champions/katarina/0 its start loaded model but nothing was showed in browsers based on chromium everything works fine

Reposting from https://discourse.mozilla.org/t/firefox-upgrade-from-115-116-results-in-broken-screen-capture/121964

Howdy folks!

I am on Arch Linux and recently upgraded Firefox from 115 to 116 and this broke WebRTC screen capture. Whenever I try to share my screen in Microsoft teams and Google Meet, the participants only see a black screen with a cursor. I am able to reproduce the issue on this test page. I had to downgrade to 115 in order to “fix” this critical feature. Before that it was broken in 114 and I had to use Chromium for presentations. I no longer want to touch Chrome with a 100 ft pole since they are trying to introduce Web Environment Integrity.

The only bug I have been able to find is from three years ago:

https://bugzilla.mozilla.org/show_bug.cgi?id=1640771

I don’t want to add a “me too” comment, but was wondering how to show/give my support to get this issue fixed? It is crippling to my work workflow, and I don’t want to be on 115 forever. I am an engineer so I can provide advanced support to a Firefox dev, just not development as firefox is gargantuan beast of a code base.

Any guidance or pointers would be appreciated, Thanks!

I try to set up Firefox Sync on Firefox on a VM on Fedora. I enter my e-mail and password. Then I get the message (after retrying): "Email resent. Add accounts@firefox.com to your contacts to ensure a smooth delivery." However, I do not get the email with the confirmation code.

My email address has this format j@xxxxx.org

How do I have all my bookmarks and folders sorted by name automatically and permanently? When I open Bookmarks I want to see the folders sorted and the bookmarks inside each folder sorted, automatically so I never have to manually. In other words, behave like Windows File Explorer.

I'm almost certain I had it working that way on a previous installation of FireFox, but I can't get this new installation of Firefox to do the same.

So I was sent a picture in .heic format. Trying to open it FF entered an endless loop opening new tabs with names like: "/tmp/pid-949/IMG_9409.heic". There was no easy way to stop it, the 'X' button did nothing. It opened hundreds of tabs. I had to kill all my tabs to get rid of them. BTW there's supposed to be a 'Recover Previous Session' button in the main menu. Not there. On line, I see several different images of what my main menu is supposed to look like but mine is nothing like that. I have 115.6.0esr (64-bit).

I am currently fresh on Fedora 38 and Firefox 115 with multimedia codecs installed such as ffmpeg. I have problems playing videos on Facebook or Twitch, like in myday stories, reels, and feed. But in YouTube, videos plays perfectly so I think there is a bug going on here? I already tested turning hardware acceleration on and off but no avail.

When writing reviews in Google Maps when you click post pictures from your computer (allowing one to browse your computer to find pictures to post) the tab crashes.

This occurs on other websites as well where one would browse the computer to attach documents, photos or videos. Heck, it even happens with this site (selecting browse to post picture causes firefox to crash).

This did not occur prior to updating to 115.0

Windows 11 operating system

How can I turn this message off? Some sites I visit give me that message, it shows up when I'm typing a reply to something which pushes the page lower and fouls up my ability to keep typing, then if goes away, comes back, goes away ... I just want to kill the message entirely. I'm not worried about speed, there's nothing to fix, I just want the message gone.

Firefox Bookmarks or Thunderbird messages folders : I'm trying to find out which folder I stored this bookmark or message in. I do a search and if I'm lucky I find a list of possible items. But the LOCATION option refers to something different from ' in which folder it can be found'. Is there a way to find this ? To find the LOCATION WITHIN THE APP ---- - WHAT FOLDER IS IT STORED IN