Firefox Support Forum

Currently, Firefox opens OBJ files as text. I want to send them to the Microsoft 3D Viewer which is the default application in Windows for these kinds of files. All I can do right now is right click on the file, save the file, then open with the 3D Viewer. I have gone to settings/General then down to applications and I can't add any files there. (Why not?) It doesn't matter if I choose to save or open files, the OBJ file still displays as text in Firefox. How do I get Firefox to send instead of display these files as text?

I maintain application that uses OWIN Microsoft library for authentication. It uses .AspNet.Cookies to pass auth information. For unknown reasons I see that Firefox 127 rejects that cookie. I've tried with SameSite Lax/None/Strict and Secure param but no results. Previous versions and other browsers ( Chrome, Edge Safari ) woks fine. Any idea ?

I have an issue with Firefox 127 not accepting a session cookie that I use for user authentication. I have an ASP.NET application with a login form that includes fields for login and password, and a submit button. When the button is clicked, an HTTPS/POST request is sent to the server. The server responds and sends back a session cookie named .Cookie.Name with the parameter httpOnly set to true.

When I check in Firefox's Developer Tools under the Network tab, I can see .Cookie.Name in the server response. However, in the Developer Tools under the Storage tab, .Cookie.Name is missing, which prevents the user from logging in. This problem does not occur in other browsers like Chrome or Edge, nor does it occur in Firefox version 126. The configurations for Firefox 126 and 127 are identical.

Could you please assist with this issue?

I had a crash on my SSD (WIn7 Ultimate) - " Operating system missing" error. I saved the data and want to reinstall Win 7 and import previous Bookmarks data to new install of Moziilla Firefox.

I transferred the sqlite file (s88qn337.default) from the previous install (now non working system) to the existing working Firefox directory (C:/Users/My Name/AppData/Roaming/Firefox/Profiles/xxx.default.

I then renamed "default.XXX.old" (the previous install had only one file in the Profile directory - ie s88qn337.default)

When I try to open Mozilla Firefox, with the single file (s88qn337.default) in the Profile directory, I get the error "Can't find user data".

When I then open fresh install of Mozilla Firefox on working SSD (Win 7 Ultimate) and try to Import Bookmarks, the options are only "Import Bookmarks from Explorer" or "Import from html file".

How to resolve this problem, please?

I have had an issue for months where streaming services like Netflix, Hulu, Max, and Amazon Prime will not work on Firefox. I am updated to the latest version, 127.0 (64-bit), and am able to successfully log in to these streaming services, but without fail get an error message when I attempt to stream a video. Netflix returns a F7531 error, Max returns an error code, and Prime Video says I cannot stream without the latest version of the browser even though I am up to date. I have restarted and updated Firefox multiple times, have toggled and uninstalled extensions and nothing has worked. The extensions I currently use are Auto Tab Discard, Google Analytics Opt-Out, Honey, Return Youtube Dislike, Search by Image, Shinigami Eyes, Sponsorblock for Youtube, UBlock Origin, To Google Translate, and Video DownloadHelper.

Until a few days ago, my Firefox would save all the tabs from the previous session. But now it does not, and I still have all the necessary settings enabled. I noticed that it will save the previous session IF I use the Firefox "EXIT" from the "File" menu. However if I use close the session using the upper right hand corner Windows close box (where the "X"), it does NOT save the tabs from the session. I also notice that when I close the Firefox window using the Windows close box, that Firefox (several) show still running under the Windows Task manager, but not when I use the "File:Exit". Running the current FIrefox version 127.0 (64-bit) under Windows 11.

Hi! I don't like the automatically updated extensions -feature, it seems to have been turned on nowadays, it has been maybe a year or two when you had control to update them by hand! I don't like this feature and it seems to now be in every browser that I use, Firefox, Opera, Brave, Vivaldi! Is there a way to turn this function off? Maybe a commandline function or an editable thing in a configuration file! Other browser developers should also think about this! I think Firefox has been a good browser to use, I used to use Opera but changed to Firefox quite accidentally when having to install things again!

Send is a free file sharing service launched by Mozilla under its Firefox Test Pilot project, which is mostly a bunch of experimental features for Firefox. While the majority of applications under the Test Pilot project are essentially plugins for the main Firefox browser, Send is a standalone service, that can be accessed via any browser. It works on a web interface and allows the user to easily upload any file to Mozilla’s servers and then download it to the other device with the help of a shareable link. What’s more is that Mozilla offers great privacy due to the encryption of the data being transmitted. Now that you know what Firefox Send is, let us discuss how to use it.

How do I enter Firefox SEND menu?

Why is Firefox backing up my bookmarks in a json file, when Firefox itself doesn't recognise the file type when trying to restore said bookmarks? I WAS able to restore my bookmarks by converting the json file at https://www.jeffersonscher.com/ffu/bookbackreader.html. But why can't Firefox just back up as an html file like it used to? I had to go off searching the internet for a solution, turning what should've been a 5 minute job into nearly an hour 😕

There is an 8 years old question about it - https://support.mozilla.org/en-US/questions/1123903 How do I do it now with Firefox 125+ ?

Hello,

I'm a web developer working for the public radio show This American Life. We have a web audio player on the website and recently I noticed it stopped working in Firefox. Looking closer at the issue, I realized that Enhanced Tracking Protection is blocking one of the scripts (pdst.fm - Spotify). Because ETP is turned on by default, I'm hoping there's a way to help bring this part of the site back to functioning without bypassing the Spotify script, as currently that's out of my power. Any help would be appreciated.

Thanks very much, Mark Nicola

I have been trying to contact support about an issue regarding being able to change my account password to the page at https://support.mozilla.org/en-US/questions/new/mozilla-account/form, however I cannot seem to submit any information. When I try, the page reloads, followed by multiple uncaught errors observed in the console, including a cross site origin request block error (in the latest stable Firefox). My browser settings use the standard browser privacy setting, and custom DNS.

Regarding the error I was trying to report, I am unable to change my password, receiving "incorrect password" despite entering the correct current password. In the browser console, a POST response with error 400 is shown.

Hi everyone,

I'm experiencing an issue with my website's compatibility with Firefox. website My website, which provides online educational resources and tools, is not displaying certain interactive elements correctly when accessed through Firefox. These elements work perfectly in other browsers like Chrome and Safari.

Specifically, I've noticed that some JavaScript-based interactive features, like quizzes and drag-and-drop activities, either don't load or don't function as expected. I've already cleared the cache and ensured that Firefox is updated to the latest version, but the problem persists.

Has anyone else encountered similar issues, or does anyone have suggestions on how to troubleshoot and resolve this compatibility problem? Any insights would be greatly appreciated!

Thank you, fatemahx

hi, i had to reinstall all my windows , after that whit the new fire fox reinstalled , many pages that load well now they dont , problems of autenticitcity, broken page page icon over images.

in my tablet and phone dont the same pages load well and in the computer too before the reinstall.

thanks