Remove Firefox interface elements with UI Eraser

Martin Brinkmann
Jan 20, 2015
Firefox, Firefox add-ons

Mozilla Firefox is without doubt the browser that you can customize the most. Even its default options to display, hide or move user interface elements outshine the functionality that other popular browsers such as Chrome or Internet Explorer provide.

It takes two clicks (one on the Hamburger menu and one on Customize) to launch customization mode to edit the interface.

Certain elements cannot be moved or removed on the other hand using the customize menu. While you could go ahead and edit the userChrome.css file manually to change, remove or move Firefox interface elements, it requires that you know how to style elements and identify them as well.

Add-ons like UI Eraser may not provide the same level of customization options but they are easier to use and may provide enough functionality for some uses.

UI Eraser enables you to remove interface elements from Firefox with just a couple of clicks. The extension adds a new icon to Firefox's toolbar that you can click on to enter customization mode.

Firefox UI eraser

When you hover over an element in the browser window that has an ID associated with it, it displays the option to hide that interface element.

All elements that you select this way are displayed in green so that you know what is hidden and what is not.

The extension works on many visible elements such as the list all tabs button, the RSS icon, the close tab icon, Hamburger menu icon and many other buttons and elements in the interface.

You can right-click to hide context menu items as well using the extension and the same is true for interface elements that are not displayed at all time.

This is for instance the case for menu bar items. Tap on the Alt-key while in edit mode to display the menu bar to remove elements from menus displayed on it by hovering over them and selecting the hide option.

Note: You can remove important elements such as the address bar using the extension.

The add-on ships with a reset option that becomes available when you left-click on its icon in the Firefox toolbar and then right-click on it while it is in edit mode.

The other option that you have is to enter customize mode, hover over interface elements that are hidden and select the unhide option that becomes available when you do.

Closing Words

The UI Eraser extension works well and improves Firefox's built-in customization options significantly. It is easy to use and ideal for Firefox users who want to hide interface elements that they cannot customize or remove using the browser's built-in edit options.

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UI Eraser
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  1. Bob said on April 2, 2015 at 2:57 am

    This reminds me of the add-on ”remove it permanently”.

  2. PhoneyVirus said on January 22, 2015 at 11:05 pm

    UI Eraser Add-on reminds me of Menu Wizard, so if anyone’s interested in tweaking Firefox should check it out, has it adds even more user interface tweaking Elements. Now I don’t know if there going to cause any conflicts together because I’m done with Add-ons for awhile, although I can’t see it causing any problems, but then again there’s always problems.

    Thanks for the Tutorial Martin

  3. RE said on January 21, 2015 at 2:55 am

    Has anyone else had this problem: In Firefox, In my extensions RIVALGAMING 1.0.0 installed itself somehow. I’ve tried all I can do to remove, even went into regedit, found it, and removed it. BUT, the Rival Gaming is still there, there is a message above it that says Rival Gaming is incompatible with Firefox 35, and it is disabled. There isn’t even a choice on the right hand side to enable or disable it. I even tried the uninstall feature from the website.(not going back to their site) because I don’t want anything else installed from them, programs, cookies, etc.
    If anyone knows how I can get rid of this annoying thing, PLEASE help! I would greatly appreciate it, Thanks ;-)

    1. PJ said on January 21, 2015 at 12:10 pm

      @RE — Try opening (right-click > edit) your pref.js, extensions.ini & extensions.json files in your Firefox profile folder. (For extensions.json, you can open this at Backup the original .json if desired.)

      In the above files, check for instances of RivalGaming, its pseudonyms, as well as bundled hijackware — possibly including: Ask toolbar, ApnStub.exe, Babylon, Dogpile, SearchFly, Conduit, WebCake, etc. etc. …. depending on which version of RivalGaming was installed to your system.

      (As an example, to totally remove the Ghostery add-on from Firefox, I had to manually delete all Ghostery strings & values from within my Firefox pref.js & i>about:config. Simply uninstalling the add-on doesn’t do that.)

      The above assumes that you had already uninstalled RivalGaming & bundled hijackware from your computer (ie. they are no longer listed under installed programs), as well as tried using 3rd-party cleaners. Some useful portable cleaners to try include: Revo Uninstaller, MalwareBytes, AdwCleaner, RogueKiller, Junkware Removal Tool & CCleaner.

  4. Tommy said on January 20, 2015 at 9:10 pm

    Just downloaded UI eraser and it works like a charm highly recommended, been looking to get rid of a lot of drop down menu crud such as unsorted bookmarks which i never click on or use, nice find Martin many thanks.

  5. Boris said on January 20, 2015 at 5:13 pm

    I wish I known about it few years ago after Firefox 5. Now I have user styles that removed almost every annoyance except for extension buttons and 2/3 important menu buttons. I honestly do not know what else can be removed.

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