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Hello, I'm trying to use https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/dom/openOrClosedShadowRoot functionality in an extension but the element.openOrClosedShadowRoot always returns null.

Also is there a place in Firefox Devtools console (similar to the Chrome Devtools dropdown) to switch the context from the user console to the extension console so we can try extension only APIs?

Thanks.

Hi experts,

Recently, I couldn't log in the Globus through Mozilla Firefox browser where I usually log in the Globus successfully. It just stopped and nothing happened. Could you please let me know how to address this issue? If you need any other information from me, please feel free to reach out to me.

Thanks, Jian

Is there a way to use the default xfce windows instead of firefox`s own? I mean I have my own setting in the xfce window manager that are not applyed to firefox. fo example: I unchecked Raise windows when clicking inside application window, that is not applyed to firefox, I also have a context menu when right clicking on other windows title bars that I can customize, In firefox I have something total else.

Dear Friends,

Trust all is well...

PLEEZE put an end to this mystery. Can you BLOCK YOUTUBE ADS or not? If so, how is that accomplished.

Many of the extension are not safe even dangerous to use.

Thank You!

Best, Ralph

When watching videos on YouTube or Amazon Prime, Firefox will eventually stop recognizing keyboard and mouse input in all windows and tabs. This can happen after just a few minutes of video or after hours. It affects nearly all input: typing or clicking in webpages, the toolbar, the address bar, etc., though I can click the 'x' button to close tabs. When I close the final window, a dialogue will appear stating that Firefox is non-responsive and allowing me to kill the process. This seems unusual, because the OS's system monitor indicates there is plenty of unused and available RAM and CPU resources. Firefox behaves normally after restarting.

OS: Xubuntu 22.04 Firefox version: 120.0 (though previous versions have been affected for the last few months)

Dear friends at mozilla.org,

Thank you for your excellent browser, which I've used almost from its first versions.

I'd like to compile its source code, which I've downloaded from your website, into a working browser. I've spent several days, and get only as far as not-terribly-helpful error messages, that indicate strongly that I'm using versions of tools and libraries that the source code doesn't like.

I'm using

 linux kernel 6.1.0-13-686-pae (from Debian)
 gcc 13.2.0-9
 perl 5.36.0
 python 3.11.7

It's sufficiently important for me to compile firefox that I'd install a fresh linux system for this purpose. Could you possibly recommend to me what linux distribution I could install, and versions of compilation tools, header files, libraries, etc. that are known to work for compiling firefox? I'd be glad to report back to you my results, to help others who'd like to compile firefox.

In case you're wondering, I'm perfectly competent in installing software, including compiling anything. I'm an M.I.T. graduate, and have been a professional computer programmer for most of the half-century of my working life.

Thank you kindly for any response that you have time to send to me.

Very truly yours,

Lyman Opie [email address]

I have an issue with the address bar in private windows. Normally when you click on the search bar in the new tab page, it will redirect the cursor to the address bar instead of letting you use the search bar.

I found the following solution on the forum here that works for normal windows: go to the about:config page and set browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar to false.

For private windows, this fix does not work. It will still go to the address bar instead of letting you use the search bar. Is there another way for me to fix this so that it will also work in private windows?

Hi, I have a weird problem, I have 3 systems on my device: windows(10), ubuntu and Arch lately when i was configuring Firefox on fresh arch install I was annoyed that I needed to re-login to every single s...t again. So I thought "Why can I just share the same FF profile between systems" Long story short it didn't work on Arch. I was forced to compile FF from source and now it works... but when I'm logged in on Ubuntu and trying to launch FF from GNU I always see this error. it's working when i point out to profile from the command line with "-p <dir>". but even then when I go to about:profiles and click "launch in new browser" it's still pooping with this error. So Am I doing something wrong or it is just impossible to do this seamlessly? is there a better(correct?) way to achieve the same functionality?

thanks for reading, ill humbly take any advice.

EDIT: I have copied the profile's folder to a separate partition which is auto mounted tried it on Ubuntu (at this time it had been working just fine) and after using it on Arch when I was back on Ubuntu it was displaying this error

Firefox has crashed repeatedly when I've switched tabs to my gmail in the past ~15 minutes. It happens in "troubleshooting mode" as well. I'm running firefox on a linux computer, and my ubuntu installation and firefox are both up to date.

Here's my crash id: bp-b079d597-fb83-4a69-ab65-896370231129

Hello, I did something stupid. I was trying to set up the dark/light theme via cli, and I asked openai about it.

It suggested this command:

echo 'user_pref("lightweightThemes.selectedThemeID", "firefox-compact-light@mozilla.org");' | jq -s '.[0]' > ~/.mozilla/firefox/*.default-release/prefs.js

Which resulted in the following error:

jq: parse error: Invalid numeric literal at line 1, column 11

When I opened mozilla, my profile was reset, and websites won't load (except this one!). They just hang there loading forever. My internet is fine, chromium works perfectly.

So how do I fix this and is there a way I can recover my profile? (Yes I know I should've made backups)

When I open Firefox, the wrong town name is always there with temperature. Can't Firefox remember my town name? I'm getting a little upset that so simple a problem can't be fixed automatically. Sincerely Bob

Hi,

I've been using the following in userChrome.css for many years

1. menu_close { display: -moz-box !important; }

to restore "Close Tab" in the File menu, based on cor-el's response regarding restoring menu_bookmarkAllTabs here:

https://support.mozilla.org/en-US/questions/799856

This stopped working some time ago and I am finally getting around to asking why.

I do have toolkit.legacyUserProfileCustomizations.stylesheets set to true, and other items in userChrome.css are working.

I am using 121.0 at home and 115.0 ESR at work and see the same (i.e. no "Close Tab"), in both cases on Debian testing. I do see this menu item when using the keyboard to open the File menu.

Any idea why this no longer works?

thank you, Greg

The fcitx input method works everywhere on my computer except Firefox. I've added the following to my etc/environment file, which is the main suggestion I found online: GTK_IM_MODULE=fcitx QT_IM_MODULE=fcitx XMODIFIERS=@im=fcitx But it still doesn't work. My operating system is KDE neon 5.27.

I just upgrade my firefox, but it did not import my history, cookies, bookmarks or passwords. I found a backup of the bookmarks (in a bookmarkbackups folder) but how do I restore the everything else?

I signed into Firefox on a lab computer that has too little storage space to install plugins (<1MB storage space left.)

Naturally, plugins did not install. I wanted to ensure that Firefox would not even attempt to install them in the future, so I set the browser not to sync add-ons.

I don't know whether what follows is because of that setting, or because I set it too late. In either case, my dozen or so plugins on my main computer have now all been uninstalled. I don't know the names of all the plugins I was using anymore.

1. Can I recover my automatically uninstalled plugins? 2. Can this bug be patched?

every time I check a like on tiktok a window pops up requiring to move a puzzle piece to where it fits in order for the like to register a real pain in the butt that should not be happening PS does not happen with chrome

I have been using Thunderbird for many years, and really like it - until two recent updates (sorry!). I am running Ubuntu 22.04, and Thunderbird 115.4.1. One now has a column taken on the left which is unnecessary, and a section at the top which is above the menus with e.g. File... but I would like my File menu at the top, as it used to be. The second issue is more frustrating - the search facility, where one can find the emails being sought, allows me to search by many options, and I was able to display the results sorted by subject, size or my normal was by date, but I never use the message threads as that is rarely of interest, and I can sort on that using the message subject if needed. Now, when I search the results are ONLY in the message threads, and if I try to sort by date, I lose all information, and the ONLY option is to see the messages by thread which is no use to me! How can I restore good old Thunderbird - the version I enjoy using (or have the functionality I had restored)?! Many thanks,

Hi

since the last update of firefox my e mail (hot mail) attachments will not print. When print is selected the only option is to print to pdf. tried in another browser and printing works perfectly. Printing worked with no problems before last update. Help Please Please note I am a very basic user so need step by step instructions. Hoping someone can help PLEASE!