Update to version 31.0 made address bar too wide which hides bookmarks, can't be changed in settings

Question

i expect to control the size of the address bar when settings are open but i can't. it takes up the whole width of the page.
mozilla shouldn't change my stuff when doing updates. they suck.

Answer 1

You can use code in the userChrome.css file (or use Stylish) to repair this regression.
Add code to the <b>userChrome.css</b> file below the default @namespace line.
*http://kb.mozillazine.org/userChrome.css
<pre><nowiki>@namespace url("https://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */
#nav-bar-customization-target > #personal-bookmarks {-moz-box-flex:1!important;}
</nowiki></pre>
The customization files userChrome.css (user interface) and userContent.css (websites) are located in the <b>chrome</b> folder in the Firefox profile folder.
*http://kb.mozillazine.org/Editing_configuration
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)
*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) TEXT file in the chrome folder (file name is case sensitive)
*Paste the code in the TEXT 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 TEXT. Otherwise Windows may add a hidden .txt file extension and you end up with a not working TEXT.txt file