Firefox Community Forum

I can't get firefox to play amazon music web page or netflix because it claims to be installing an app which it never completes. I've tried to purge cache for the site in question, to no avail. What is the solution?

Each time I try to download patch or updates to my personal desktop software through FF, I receive an error message. 404 Bad Request - Request header or cookie too large.

How can I correct this as I have to download my updates for my software.  :)

Hi. Your browser recently has spikes in RAM usage, up to 96%. It really disturbs my business and my online gaming. It makes my computer lag like crazy.

I've been your loyal customer for more than a decade. Please, tell me what to do. I don't want to use some Chromium piece of crap because of this.

Installation aborted because the add-on appears to be corrupt. OmegaSwitch

Hello, I encountered an error when trying to install the extension. I've never encountered anything like this before

Hello

Out of nowhere I started having problems watching Videos on Twitch. So, after some Flatpak repairs and reinstalls, I decided to sync my data with Firefox Sync and remove it completely. For my surprise after reinstalling and logging in on Firefox Sync my only extensions and, what looks like part of my history were restored. Lost my session, custom tabs names etc.

Hello, please i want ask about saving multiple open tabs in Firefox, i tried classic bookmark manager and extensions but all of them saved only part of all tabs

Thank you very much

It seems more and more websites refuse or deny FF as an acceptable browser. My bank, my electricity provider are just two examples.

Is this being addressed?

Since the auto-update to version 128.0.3 (64-bit) two weeks ago, my Firefox crashes as soon as I switch over to a different programme. I am on Windows 10. Whenever I try to re-open the programme, I get the error message that Firefox is already running and if I want to restart or quit. Can you please deploy a fix for this? Thank you.

I use two Firefox windows: one that has the web interface of my music player only, and another window for other internet browsing.

However, sometimes when I open a link from outside Firefox it opens in the window of the music player rather than in my "browsing" window. Moreover, when I switch to Firefox (using Cmd+tab on MacOS), the music window is selected rather than my "browsing" window, even if the last selected window was my browsing one.

Is there a way to make a window exclusive for a tab so that no other tabs are open in that particular window (and perhaps the tab bar is hidden)? Or is there to designate one of the windows as the "main" window?

Today I realized that I have installed two (2) versions of Mozilla Firefox on my Laptop PC which I rarely use.

Both editions are 64-bit type but one is version 109.0.1 (11/04/2023) in

C:\Program Files\Mozilla Firefox and the other is version 128.0.3 (28/07/2024) in C:\Program Files (x86)/Mozilla Firefox.

I suppose it is illegal to have two versions of the same App., so the question is how can I delete the old version (109.0.1) without affecting or damaging the new version (128.0.3)?

Thank you, JOHN HATZITOLIOS

I was told my bank that there has been an issue with firefox since the last upgrade. I can sign into my account, but if I try to do anything or click on anything, the site locks up and I can not do anything except for sign out. They told me that it was on your end and that you needed customers to reach out. It's becoming frustrating that I can't use firefox for this application. I can get into my account and do what needs to be done with other browsers. What can you do on your end. The bank is Mission Federal Credit Union. Thank you! I look forward to hearing back with good news!

Is Firefox now a complete tool of Google ? about:preferences#search there is no way to delete google as search engine I have startpage and duckduckgo as alternative options listed and I can remove them, but google cannot be removed as the REMOVE button is not highlighted in case of Google. Why do you hardcode Google as the default browser for the URL bar ?

From the attached image you can see that the "Remove Tab" is inactive specifically for google. I tried absolutely all advice on the net, and nothing works. Firefox now seemingly FORCES us to use google. This behavior was not present in the previous firefox version I used. It immediately happened after update to 128.0.3 (64-bit).

Is google now hardcoded into firefox ? If so it is time for a hard fork in the firefox code. Hopefully it is not needed.

In addition Google was ruled to be a Monopoly today by a federal judge,

https://apnews.com/article/google-antitrust-search-engine-verdict-apple-319a61f20fb11510097845a30abaefd8

So it would be better for Mozilla/Firefox to not continue the monopoly and become an enabling party in monopoly lawsuits.

On our web site we have a page that includes mp3 files, which play okay on Firefox; but on another page on the site with mp3 files, Firefox (including different versions on different computers) produces the error message, No video with supported format and MIME type found." FWIW, other browsers like Safari (Mac), Chrome (Mac and Win), and Edge (Win) all play the problematic files without a hitch.

Is there a fix for this problem that can be attempted by the non-tech types?

Text is blurry in Firefox when I am viewing on an external monitor. All Windows dialogs look normal and Chrome and Edge look fine. Only Firefox seems to have the problem. I am using the latest version of Firefox as far as I am aware (auto-update is turned on). The OS is Windows 11. The external monitor is set to 2560x1440 resolution and fonts are scaled to 125%. I'm not sure what other settings are important. I don't see setting in Firefox that seems likely to help.

I have been using addons, that allow opening web pages in sidebar, and all share a similar drawback, which is why I believe it to be on the browser side. When I close the sidebar and open it again, the page gets reloaded. This makes using messengers etc. in sidebar much less comfortable. I noticed, however, that bookmarks and history, when opened in sidebar, remember the state the were in when last closed. Is there some simple way to make pages remember their state as well or it can only be done by changing the addons' or the browser's code?

I am developing a website and when troubleshooting I am getting the following issue in both private browsing and normal browser mode.

- 'my_watchlist' html page loads in the both browser mode windows as it should - in both browser mode windows, view source code shows a dashboard page html and not the my_watchlist page html - inspect shows the correct html code for the my_watchlist page in both browser mode windows

The reason this is an issue is because I am not getting changes made to the source code in the my_watchlist page showing after saving and uploading to the server.

To clarify, I have tried: - closing browsers completely and reopening - still same issue - clearing cache - same issue - restarting pc - same issue

What is causing this?

Thanks.

This current update (129.0) crashed my windows 10 pc. Firefox showed that the update was completed and restarted itself. Nvidia downloaded a driver update & attempted to install it but failed. The error msg indicated that another app update was in progress, prevented it from installing, and to try later. Based on what I saw on Task Manager, Firefox locked up the windows installer module and had 100% disk usage. PC then crashed and looped several times trying to auto-repair itself. Had to do a hard power down, a safe boot, and the restore PC and Windows 10 to last good version. Will not do any Firefox updates until this problem is resolved.

I get a weird green mark on the top left, which looks like some type of greenscreen cursor input thing. I have seen it on Gmail. Not sure where else. Last time was a while ago.

This is on Windows 11. Just worried if this is some type of backdoor thing.

After Firefox update on August 6, 2024, I cannot use Hulu video streaming. There is a black screen. Rolling back to 128.0.3 solves the problem. Will there be a fix so that I can update Firefox to the latest version?