Firefox Support Forum

Hello guys, so in the past 2-3 days i started facing Cross-Origin Request Blocked for a lot of websites lets take chatgpt for example, if i visit it i get:

Content-Security-Policy warnings 2 Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9. (Reason: CORS request did not succeed). Status code: (null). The resource from “https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9” was blocked due to MIME type (“text/plain”) mismatch (X-Content-Type-Options: nosniff).

and its getting so annoying that its blocking a lot of websites, i tried chromium it works fine and works awesomely no cors no problems. I even tried to disable the firefox protection, dns over https on/off, change my main dns upstream, installed firefox developer, compete uninstall/reinstall, cache clear from installers and from firefox it self nothing is working. I will provide firefox developer edition troubleshooting information but keep in mind it doesnt work on both firefox normal and developer

Please any help would be appreciate it.

Firefox v124.0.2-1

I am trying to log on to my account at SketchUp. At the login page i hit get started and a black page come up except in the top left corner is typed "Firefox not responding" the page hangs a few moments then it takes me back to SketchUp login. I have not had any recent updates done or required since last logged in and that was yesterday all worked well.

Hi....

I've been using the same firefox (installed every update) for over 10 years now and a lot of bookmarks have been accumulated. They are from different sources for different reasons/subjects/interests etc... I think when I reached ~430.000 or something like that it really slowed firefox down in a way that even clicking on a folder in the "bookmark symbol bar" (the one underneath the URL address fiel) takes 2-3 sec to open up and show the containing bookmarks. In the bm-manager going from one folder to another also takes a few seconds. I've now deleted about 40.000 but no change it's still lagging. and deleting 1000 takes about 1h.

I've looked but so far I couldn't find another tool or a better way to manage all these URLs WITH their title.

I still want to keep them, but managing them has become so slow and tedious. So if you have any suggestions especially for other tools to manage them....

I also think the possibility to export only a part of them (selected ones, or specific folders) would be helpful; maybe also a tool to clean up the database? (like defrag did for harddrives?). or split it to differnt files? I don't know.

I know 400.000 bookmarks are extreme... but well....

My Browser keeps on telling me there is an update... I've updated, reinstalled the latest version and it still keeps giving a pop-up saying there is an update...

How do I get rid of these pop-ups???

I have had this problem for a while. I am not sure what to do so that I can fix this. Whenever I open a pdf or any application that can be opened in the browsers shows me two options for firefox browser. I attached a picture that will make it obvious what the problem is.

Today when I close many tabs using control w firefox seems to randomly jump around when choosing which next tab to close

I wish to have firefox always close the adjacent tab to the tab I just closed

This should be the default behavior ... I do not see any setting for this ... is there an addon to do this ?

I am using the latest firefox on ubuntu

• • • UPDATE*** below answer for setting `browser.tabs.selectOwnerOnClose` has no impact on this

Hello! Can you help me sort out a little problem? I am reaching out to seek assistance with a specific issue I am encountering in the Firefox browser.

In my previous browser, when opening new tabs, they were considered active even if I did not immediately switch to them. This behavior allowed me to open multiple tabs, for example, by using the mouse wheel to open several videos from the main YouTube page. Subsequently, when closing the main page, the videos would be available in the order they were opened, facilitating a seamless viewing experience.

Upon transitioning to Firefox, I have attempted to configure the browser to replicate this behavior using the Sidebery extension. However, even with the extension, new tabs are not recognized as active unless I explicitly switch to them, making it challenging to maintain the desired tab activation order.

I have explored various settings and experimented with the Sidebery extension but have not been successful in achieving the desired result. In contrast, the Yandex browser, with the "Switch to the previous active tab when closing a tab" option enabled, behaves in the manner I am accustomed to.

Could you please provide guidance on how I can configure Firefox to consider new tabs active immediately upon opening, regardless of whether I switch to them immediately?

I added pictures to make it clearer what I'm talking about.

Thank you for your time and assistance.

Error Message: "Could'nt Sign You In: This Browser or APP May not be Sscure 1. Happened to Both Build 124 and 125 2. Virus Clean 3. Haved tried cleaning the cache and cookies

System OS: Debian (codename: bookworm) Problem description:

I had installed a fresh version of Firefox and it's keeping to crash the pages (Error: The page has crashed) without any reason. Any troubleshoot methods (including clearing the cache, cookies, history and even restarted the network and pc.... only to fail and keep having same issue.

I had checked if there is no problem with the opened website in another web browser and in it the page was working correctly.

The issue persist from several versions of Firefox

Firefox stop from 2 days ago read Google Recaptcha, from nothing.., Dev version to.. I have the last 126.0b8 and both not working, I try disable Tracking Protection and still, clean everything... spinning forever...

I try my Firefox at mobile, that works. I need Firefox working on this. Cant use Chrome...

Help!

Hey folks, I use the firefox developer edition and I downloaded a zip file in it's private and when the download was complete I closed the window and open the download folder but the file was not there I haven't change the downloads folder location

I prefer using Firefox as my browser (have done so for years), but recently I have noticed inability to open some hints provided on my family trees on Ancestry.com

When I called Ancestry, they suggested I use a different browser (: - but when I did, I was able to open the hints Firefox won't open. What is the problem? I was also told that another Ancestry user had called in previously with the same problem. PLEASE fix this!

If it helps, I use Windows on an HP Envy laptop (have for some time - wasn't a problem before a month or so ago). Will I hear back from anyone as to when this might be addressed/fixed?

The news reader (powered by Technavia) for the Tucson Daily Star starts OK but continually slows down and eventually Firefox hangs and is non responsive. It happens in different places. The same news reader works OK in Edge or Chrome. Any idea how to trouble shoot this?

Mike Mulcahy

All,

I asked about pinning files (html) or sites to the Firefox taskbar and got this entry form you system:

https://support.mozilla.org/en-US/questions/1347219

I knew that answer was total BS as I already had 3 items in the Firefox taskbar So I did a quick test and all that is needed is to drop a file into the Firefox taskbar is to drag & drop it there.

I tried 1.) A file short cut from the desktop, 2.) A site from another FF open tab, 3.) a file from W: File manager, L: Dolphin and all were successful.

So I'm guessing this is such an old post, saying "not" possible, so should be deleted!

Cheers!

TBNK