This only shows up if you have enough tabs open. IIRC the default is 7.

Once you have more tabs they will not all display and you will get scroll arrows appearing that allow you to see the hidden tabs, and the small down arrow to show the drop down list.

If you do have a lot of tabs open but no arrow, try Firefox in its safemode

• Diagnose Firefox issues using Troubleshoot Mode

possibly you have some add-on interfering

chayamatty said

I used to have a small arrow at the top right corner of my screen called "list all tabs" when I clicked on it it gave me a drop down list of all my open tabs. Somehow it disappeared & I don't know how to get it back I tried going into customize, but could not find it there either. Please help!

John99 said

This only shows up if you have enough tabs open. IIRC the default is 7. Once you have more tabs they will not all display and you will get scroll arrows appearing that allow you to see the hidden tabs, and the small down arrow to show the drop down list. If you do have a lot of tabs open but no arrow, try Firefox in its safemode

• Diagnose Firefox issues using Troubleshoot Mode

possibly you have some add-on interfering

Thanks a lot John!

You can look at this extension:

• Permanent List-all-tabs Button: https://addons.mozilla.org/firefox/addon/permanent-listalltabs/

You can also do this with code in userChrome.css or with Stylish.

Add code to the userChrome.css file below the default @namespace line.

• http://kb.mozillazine.org/userChrome.css

@namespace url("https://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

#tabbrowser-tabs ~ #alltabs-button { visibility:visible!important; }

The customization files userChrome.css (user interface) and userContent.css (websites) are located in the chrome folder in the Firefox profile folder.

• http://kb.mozillazine.org/Editing_configuration

• Create the chrome folder (lowercase) in the <xxxxxxxx>.default profile folder if this folder doesn't exist
• Use a plain text editor like Notepad to create a (new) userChrome.css file in the chrome folder (file name is case sensitive)
• Paste the code in the userChrome.css file in the editor window
• Make sure that the userChrome.css file starts with the default @namespace line
• Make sure that you select "All files" and not "Text files" when you save the file via "Save file as" in the text editor as userChrome.css.
  Otherwise Windows may add a hidden .txt file extension and you end up with a not working userChrome.css.txt file

You can use this button to go to the currently used Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
• http://kb.mozillazine.org/Profile_folder_-_Firefox

• /questions/926077