Firefox Support Forum

My API URL is giving me CORS Error in Mozilla Firefox, but in other browser there is no error. I have tried many methods like changing the about:config but it didn't make any difference. Its been days I am facing this issue. Kindly help. Thanks in Advance.

FRONTEND : Angular. BACKEND : Dotnet core API.

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at <MY WEB API URL>. (Reason: CORS request did not succeed). Status code: (null). Dotnet code for API services.AddCors(o => o.AddPolicy("MyPolicy", addcors =>

           {
               addcors.AllowAnyOrigin()
                   .AllowAnyMethod()
                   .AllowAnyHeader();
           }));

app.UseCors("MyPolicy");

The PTL network stopped working for playing live tv, it's the only live broadcast I have trouble with, all other PTL network features work fine, it does not matter what performance setting is used.

Hi All!

I have a problem with the launch and operation of Mozilla Firefox/Seamonkey. Sometimes the browser gets stuck for minute until the sites start opening. At the same time, when browser starts up, I see activity that was not initiated by me.

After some time of use, the system crashes with a blue screen with an error in the ndis.sys driver.

These problems began to occur after one of the next FireFox updates. Previously, the system had been working without a blue screen for many years. If I do not start FireFox, the error does not recur. Also, if I make filtering TCP connections with the site in the RU zone at the external firewall, FireFox works stably.

I want to understand which process/component/setup entry initiates this activity. Also, I don't want the browser to try to get any information from sites in the RU zone.

FireFox version: 115.7.0esr (64-bit) System version: Windows 7 Pro 64-bit SP1

Thank you!

The last few days Firefox 115.8esr started to give me a "Gah. Your tab just crashed." whenever I try to load somes pages, also sometimes it shutdowns as soon as a video is played in youtube.

Here's recenet Submitted Report IDs:

bp-de0d03ed-13d4-4dbf-9180-264f60240306 3/6/2024, 11:11 PM bp-1d1c1723-da9c-4a10-aec4-f3e450240305 3/5/2024, 3:34 AM bp-705c466c-f051-4ec7-a787-b71ae0240305 3/5/2024, 2:14 AM bp-c9656a28-c95e-4536-9339-7ddbe0240304 3/4/2024, 11:23 PM

Thanks in advance for your help.

PS/ disable hardware acceleration in Firefox, didn't fix it.

Extension has permission "Access your data for sites in the abc.de domain".

The documentation says that such extension can read "data you enter into those web pages, such as usernames and passwords"

Can extension send such data away (for example to its developer)? What kind of permission is needed for that? Can you quote exact name of such permission/s from linked article so i can lookup that?

I lost suddenly some pints in my explorer. I did not delete them. It had happened at: BENUTZER - Matthaeus Deffner There I have had saved some files "LEBENSLAUF" They are lost now. Can yo help to get again?

I have used Pocket, and found it useful, but am infuriated by one issue. If I don't click on a particular selection, I cannot get back to it on Pocket. Why is this? Why can't I get back to the display of Pocket articles when I choose not to follow a particular avenue? This really gets my goat.

Hello. I am recovering data and files from an old Windows XP machine and have installed Firefox ESR browser. I can go online without problems but when trying to log into my account for Firefox Sync I get the error message " Blocked by Content Security Policy This page has a content security policy that prevents it from being loaded in this way". I would be most grateful if someone could help me with this please. Best regards Tony

I'm getting loads of SSL errors when trying to connect to various web pages. The errors don't seem to relate to the target pages, something in the connections fails.

The symtoms appear to be similar to this closed bug which doesn't seem to have been resolved. https://support.mozilla.org/en-US/questions/1378352

Two of the more recent errors were: SSL_ERROR_DECODE_ERROR_ALERT SSL_ERROR_BAD_MAC_READ

There were several more which I don't remember.

Has anyone come up with a resolution?

Recently had my FF update to version 115.0 automatically. With the update, watching videos on youtube is impossible. Videos show buffering but never play the video and do not start even with skipping around. Same thing goes for live streams on twitch where the chats will load but not the actual stream. Other videos in news websites appear to be the same. Issue is not resolved in private browsing.

Hi,

we have some appliances with a webadmin interface over https with a custom port. Since one of the last Updates, Firefox 102.3 (portable) is still working, I can not load the webadmin of said appliances when I try to connect over DNS or the WAN IP, it's only allowed to be accessed through our WAN IP or from the local network. When I connect with the internal IP address of the Appliance or if I use Opera/Edge (both I don't want to use) I get the option to accept the Security Risk and Continue. It's not with every Appliance, same vendor, same firmware but maybe newer certificate. But all certificates still valid, but self-signed.

What can we do, other than not use Firefox?

Greetings from Germany, Andreas

I can't say well what is it ...but when i open links from discord (twitch/yt/etc) the Firefox take too long to start load the page but if i just click on any link direct from firefox browser ..the page load faster

-windows 10 pro x64 22H2 -Firefox Dev 115.0b5 (i use dev to load unsigned pluggins) but the problem persist in all versions