Firefox Community Forum

'

Hi,

On MacOS, in order to set keyboard shortcut, I need to know the exact name for the feature. But I can't find tab navigations in Firefox's menu.

For example, in Chrome, they have a menu called "Tab" and there is "Select Next Tab" and "Select Previous Tab" in the menu. That are the names I need to set keyboard shortcut. But I can't find the equivalent in Firefox.

From the screenshot, the keyboard shortcut works for Chrome, but not working for Firefox as I don't have the exact name for tab navigation.

Hi there, I'm trying to upload a new version of my browser extension (version 1.4.5), but the submission is being blocked due to a version number conflict. The issue is that I accidentally submitted a different extension under this listing with version 1.7.7. I reverted it immediately, but now I'm unable to upload the correct version (1.4.5) because it's considered a downgrade.

I really don't want to change my extension’s versioning just to get around this, since 1.4.5 is the actual next version in my release cycle. At the same time, I don’t want to stop updating the extension on the Mozilla Add-ons store. Is there a way to resolve this?

Hello! I'm trying to download a quantity of audio files from a specific website. Once I open firefox, I can manage to download a few in that session - anywhere from 1 to 10 usually. Then, at some point, the downloads start to hang. They appear as how they do when they're loading - "Unknown time left - 0 bytes (0 bytes/sec)". However, they never load. The only solution is to restart Firefox, to be able to download a few more.

I'm on Linux mint, Firefox version 137.0.2 (64-bit). I tried running firefox through the terminal to see if anything would show up when the downloads stop working, and I got this:

[GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt [Child 47831, Main Thread] WARNING: Unable to open /var/lib/flatpak/exports/share/dconf/profile/user: Permission denied: 'glib warning', file /builds/worker/checkouts/gecko/toolkit/xre/nsSigHandlers.cpp:201

(/usr/lib/firefox/firefox-bin:47831): dconf-WARNING **: 17:00:51.332: Unable to open /var/lib/flatpak/exports/share/dconf/profile/user: Permission denied [Child 47834, Main Thread] WARNING: Unable to open /var/lib/flatpak/exports/share/dconf/profile/user: Permission denied: 'glib warning', file /builds/worker/checkouts/gecko/toolkit/xre/nsSigHandlers.cpp:201

(/usr/lib/firefox/firefox-bin:47834): dconf-WARNING **: 17:01:05.497: Unable to open /var/lib/flatpak/exports/share/dconf/profile/user: Permission denied [Child 47553, Main Thread] WARNING: Unable to open /var/lib/flatpak/exports/share/dconf/profile/user: Permission denied: 'glib warning', file /builds/worker/checkouts/gecko/toolkit/xre/nsSigHandlers.cpp:201

(/usr/lib/firefox/firefox-bin:47553): dconf-WARNING **: 17:01:14.186: Unable to open /var/lib/flatpak/exports/share/dconf/profile/user: Permission denied

And a lot of "ATTENTION: default value of option mesa_glthread overridden by environment." - but those seem to happen all the time during regular usage.

Any way I can go about troubleshooting this, or am I stuck with restarting Firefox every few files I need to download? Thank you in advance for any help or advice.

Hello!

After the latest Firefox Desktop updates (not sure which one exactly, since I didn't notice the issue immediately), I've started experiencing a problem with copy-pasting text — specifically with line break formatting on Windows 10.

Instead of copying line breaks using the Windows-style carriage return + line feed (\r\n), Firefox now copies only line feeds (\n). As a result, the text appears as a single long line when pasted into native Windows applications — which breaks the expected formatting. This behavior mainly affects:

• Text editable fields (e.g., contenteditable or textarea) in modern web applications.
• Code blocks or snippets (such as in Markdown or monospace) copied using "Copy" buttons (e.g., in ChatGPT or GitHub).

At first, I noticed this only when copying code from ChatGPT using the code-snippet copy button. But now it happens in almost all editable text areas — if I enter text with line breaks manually, and then copy it, those breaks do not appear properly in native Windows apps. For example:

• In Google Sheets, I often edit text with line breaks in a cell, but when I copy it back, it's all flattened into one line.

Right now, I have to fix this using scripts that replace \n with \r\n, but that's a very inconvenient workaround.

❗My main question is: What changed in Firefox that caused this behavior? This used to be reliable and feels like a regression. It’s a very basic feature and critically important for my daily workflow!

🔧 Follow-up questions:

1. Can this be fixed in a future Firefox update? Will it be addressed?
2. Is there a way to fix or configure this behavior right now via browser(settings, configs)?
3. Is there an extension or workaround that can restore the \r\n format without manual scripting?

Affected apps:

• ChatGPT
• Google Spreadsheets
• Trello
• ProtonMail (regular text copying)
• (more)

Thanks in advance for any clarification or suggestions!

Please see enclosed screenshot, it happens when I set a video full screen. It doesn't happen all the time but randomly. The screenshot shows the video before it starts hence the black screen. Refreshing the page gets rid of it but I'd like to know what's causing it in the first place. Using latest Firefox 137.0.2, Windows 10.