Does anyone read this? Or did I post in the wrong area? For the time being I guess I'll have to downgrade my Firefox until this problem is fixed.

The browser.search.showOneOffbuttons pref is no longer supported in Firefox 43+. You can find this feature in the CTR Options/Preferences.

• CTR Options > General UI (1) -> Old search (experimental)
• https://addons.mozilla.org/firefox/addon/classicthemerestorer/

If the website offers a search engine then you will notice a green plus next to the search engine icon and an "Add..." item in the search engine menu that opens if you click this button.

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

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

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

/* replace icon with the green + indicator */
.searchbar-search-button[addengines="true"] {
 list-style-image: url("chrome://browser/skin/search-indicator.png") !important;
}

/* remove Add search engine item */
#PopupSearchAutoComplete .addengine-item {
 display:none !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

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

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

• 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

Thank you for your reply. I really appreciate it. The old search setting in Classic Theme Restorer worked. Thanks again.

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.

Thanks for reminding me Fred. I just did it.