Diễn đàn hỗ trợ Firefox

Sometimes drag functionality stops working. I can't grab a tab to move it to another position or to a new window. (Holding left click on the tab and moving the cursor does nothing). Also, re-merging the tab with another firefox window stops working. (Dragging a tab to a firefox window from another firefox window doesn't merge them. It does nothing) I can right click on the tab and select Move to move it to a new window but dragging stops working. I have to close Firefox and start it again (sometimes twice), then dragging starts working again. This happens multiple times a day. I am on Linux Mint and the version is 126.0 (64-bit). This problematic behavior has only recently began.

Hi Was told to ask new question off of this tread. https://support.mozilla.org/en-US/questions/1314940#question-reply

I have similar issue. Have file that has all the tab history, but can't get Firefox to recognize or use it. The scrounger pulls up everything so the file is good it seems.

Why can't, or how do we get Firefox to use it?

Thank you

I used to be able to drag a tab from one window to another. Has this facility been removed? The Move option lets me move the tab to Start or New window, but not an existing window as I would like.

Firefox has a feature where, if you select a tab and drag your cursor downwards while still pressing down on it, it will open that tab in a new window. Is there any way to disable this? I am frequently opening tabs in new windows when I'm just trying to view them and it drives me mad. I never use this feature intentionally- I am constantly using on accident due to quickly moving my cursor away from the tab bar to view the tab I just opened. Thank you.

This code in mozilla.cfg used to overwrite new tab, but as of latest firefox 136.0b1 no longer works. Any way to fix this? There error in Browser Console.

// mozilla.cfg needs to start with a comment line var {classes:Cc,interfaces:Ci,utils:Cu} = Components;

/* set new tab page */ try {

 Cu.import("resource:///modules/AboutNewTab.jsm");
 var newTabURL = "file:///D:/Documents/images/home.html";
 AboutNewTab.newTabURL = newTabURL;

} catch(e){Cu.reportError(e);} // report errors in the Browser Console

I'm using Firefox Developer Edition v136.0b5, and I'm looking for a way to remove “Turn on Vertical Tabs” from the contextual menu, because I'm so used to reopening a tab by clicking on what was then the last item in the list, that every time I end up with vertical tabs lol.

I have vertical tabs enabled and I'm trying to access the tab overview menu to close duplicate tabs. Unfortunately I can't find this menu anymore. If I disable vertical tabs, I can see the icon in the top right. How do

How do I access the tab overview menu when using vertical tabs?

Thanks

OK after the code breaking yesterday here is the new code I got that works.

https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/tabs_on_bottom_v2.css

I recently decided to try vertical tabs in Firefox, and can't find a way to search these tabs as I could when they were horizonal, with the downward pointing arrowhead. If this is a feature, please let me know how to add it to my sidebar, and if not, it would be great if this feature could be developed. Thanks!

I would really like to move from brave, but really need tab groups before I do so.

Its marked as progressive rollout. What exactly does that mean in terms of when I can expect to get this feature?

Hello,

I just found out about the Firefox group tabs feature and love the concept! However, on my computer (Linux, Pop OS), the default theme makes it difficult to see the underlining color for the group. Is there a way to increase the thickness? I've added a picture of how it looks, there is only a very thin (in this pic, blue) line underneath the tabs. I can barely see it, making it's use harder...

Hello, I have Firefox set to open the tabs that I had open during my last session. (General > Startup > Open previous windows and tabs). When I open Firefox, it does give me all the tabs that were open in my last session. But it does not give me the current pages. It gives me the pages as they existed when I closed it.

Is there some way to have Firefox refresh the tabs when I open the browser? I seem to remember this happening in the past. But it's possible I was using a different browser then.

Now I'm using version 133.0.3, Firefox for Linux Mint mint-001 - 1.0. Yes, I realize this is not the current version. If it's possible to get this feature with the current version, I'll be happy to upgrade.

Thank you very much.

So I change the tabs maxim length (i chose 225) because i hate not seeing the name of the tabs that i have open, now i have 10 tabs on my sight on my monitor, i usually open a LOT of tabs for youtube videos or so on, and have a constant of 40+ tabs open

the issue is when i scroll through the tabs with my mouse wheel, it jumps 10 tabs at once, now i see the arrows on the side of the tabs, my monitor is Ultra Wide so is annoying to keep pressing that Scroll backwards & Forwards button especially when the speed is to slow, while my mouse wheel speed is in 10 tabs TO fast!

Is there a way to change the Speed of the mouse wheel scroll tabs ? something in about:config ? or a Add-on?

Hi,

In my Firefox Developer install the new tab groups feature seems to now be working like one would expect, but my main Firefox install (Firefox desktop 138.0 (64-bit)) has some issues.

I can add tab groups, add tabs to groups, but left mouse clicking the colored tab header does NOT close the tab group, like it does in Developer browser. Mode of tab group clearly changes, as the tab is either dark or light colored after a mouse click.

I don't remember changing any other settings lately in about:config, except setting tabs.groups feature to true, and I don't have too many extensions installed, and I also tried disabling all the extensions, but that didn't help.

Due to not everything reloading every time, a connectivity problem I can't blame Firefox for, I now have 3 windows, together comprising all the tabs I want [OK some are duplicated, but it's easy to remove those...]. How can I stick those all back into one window? - with my pinned tabs at the head., which is where they were before...

I have read a Mozilla blog that you can make tab groups now, i have tried to make a tab group and it for some reason i can't, i looked at Mozilla's guide for the Tab groups, they didn't help. Does anybody know how to fix this problem?

I recently updated to Firefox 138.0.1 to use the new tab groups feature, which allows grouping and labeling tabs, as outlined in Mozilla’s support article (expected for all users by May 6, 2025). However, after updating, I don’t see the tab groups option when dragging tabs or right-clicking them. Has anyone else faced this issue? Could it be due to the progressive rollout, a conflicting extension, or a setting I need to enable? I’ve tried restarting Firefox and checking the tab bar, but no luck. Any community solutions or workarounds to enable tab groups would be greatly appreciated! Please share your experiences or fixes.