FireFox menus became double-spaced in latest update - I want to return to single-spaced. How can I do this?

Question

In the last couple of days, FireFox's bookmark menus have become double-spaced. I believe the double-spacing also applies to the context menus.

This was posted in the now-closed question on StackOverflow. Here is the Mozilla forum question on the topic.

I have tried the suggestions posted there without success.

Answer 1

For me what worked was the CSS from https://www.userchrome.org/firefox-89-styling-proton-ui.html:

• Go to or create Userchrome.css (as per previous answer need to go to "C:\Users\(my_name)\AppData\Roaming\Mozilla\Firefox\Profiles". Look for the newest folder, go into it and find the folder called 'chrome'. If the 'chrome' folder doesn't exist, create it.
• Open userChrome.css in Notepad. (you may need to create this as well)
• Enter the following

menupopup > menuitem, menupopup > menu {
  padding-block: 4px !important;
}
:root {
  --arrowpanel-menuitem-padding: 4px 8px !important;
}

• Restart firefox

If this does not work then:

• Go to about:config in a browser tab and accept the warning
• Search for toolkit.legacyUserProfileCustomizations.stylesheets and set it to true
• Restart firefox

Answer 2

For me the browser.proton.contextmenus.enabled = false fix worked

1. In the browser address bar, type about:config.
2. Search for "browser.proton" to get a list.
3. Disable Browser.Proton.Contextmenus.enabled

Here is a screenshot of the same menus after this was done:

Answer 3

I had previously fixed this problem back in June, 2021. I followed the instructions found at https://www.ghacks.net/2021/05/09/how-to-fix-the-firefox-89-user-interface/ to download the 2 .css files stored on their website. Today, Jan 25,2022, I found that my FF browser (96.0.2 version) had reverted back to double spacing (as well as the File, Edit, View etc. pull downs). I tried all of the above methods and nothing worked for me. I went back to the "ghacks" web page noted above and saw that their 2 .css files had been recently updated. I downloaded their latest files, replaced my old userChrome.css and userContent.css files and restarted FF. Success!

Answer 4

The same thing happened to me. This worked (from https://support.mozilla.org/en-US/questions/1186601):

• Find the latest profile that FF just created. Mine was in "C:\Users\(my_name)\AppData\Roaming\Mozilla\Firefox\Profiles". Look for the newest folder, go into it and find the folder called 'chrome'. If the 'chrome' folder doesn't exist, create it.
• Open userChrome.css in Notepad. (If you had to create the 'chrome' folder, create this file as well).
• Paste this at the bottom of the file:

/* Bookmark menu */
#PlacesToolbarItems .bookmark-item {
  padding-top: 0px !important;
  padding-bottom: 0px !important;
}

/* Right-click menu */
menupopup#contentAreaContextMenu menu,
menupopup#contentAreaContextMenu menuitem {
  padding-top:0px !important;
  padding-bottom:0px !important;
}

• Save the file and restart FF.

Answer 5

This solution offers the closest resemblance to the old Firefox style, and is what I use (you'll notice that the userChrome.css and userContent.css are too big to paste here so I've linked to where I found them:

1. Go to about:config and set toolkit.legacyUserProfileCustomizations.stylesheets to false.

2. Then go to about:support and press "Open Folder" under "Profile Folder".

3. In the folder that opens up, create a new folder called chrome, and inside it, copy both the userChrome.css and userContent.css from here.

4. Restart Firefox, and you'll have all the menus normally spaced, and your old style of Firefox back!

Answer 6

March 2023: This suddenly happened to me after a debian update to firefox version: 102.8.0esr

There's a "compact mode" which returns the menus to usable spacing, as well as making the bookmarks toolbar thinner.

But even the option to do so is hidden and you need to go through about:config to turn the option back on

Instructions here worked for me:

https://support.mozilla.org/en-US/kb/compact-mode-workaround-firefox