Don't use old versions of Firefox. They contain security vulnerabilities.

• https://www.mozilla.org/security/known-vulnerabilities/firefox.html

If you need to change the toolbar setup between Icons and Text, Icons Only or Text Only, you need Classic Theme Restorer. This add-on also provides a Small Icons mode.

• https://addons.mozilla.org/firefox/addon/classicthemerestorer/
• How to make the new Firefox look like the old Firefox

If you only want to get rid of icons on the Bookmarks Toolbar,

1. Install Stylish and restart Firefox when prompted.
   • https://addons.mozilla.org/firefox/addon/stylish/
2. Click the ≡ Menu Button and choose Add-ons.
3. In the Add-ons Manager, click User Styles on the left.
4. Click the Write New Style button at the top. Paste the following in the text box, give the style a name, then click the Save button.
   • On my system, removing the icons makes the bookmarks appear too close to each other. Omit the last two lines of the style if you don't want to add any space between bookmarks.

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

#PlacesToolbarItems .toolbarbutton-icon { display: none !important }
#PlacesToolbarItems .bookmark-item:first-child { margin-left: 6px !important; }
#PlacesToolbarItems .bookmark-item { margin-right: 6px !important; }

If you don't want to install an add-on, you can use the userChrome.css file instead, but I don't recommend it.

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

Gingerbread Man, thanks very much. I reinstalled the latest version, then used your first suggestion - classicthemerestorer addon.

I now have my Bookmarks Toolbar looking how I like it.

However, new questions have arisen. I did rather like the rounded tabs rather than square tabs - can I have my cake and eat it too? Also, I'm not sure if I like tabs on very top or not... but cannot find a way to toggle that option. Possible?

Thanks for your help!

GrogBlossom wrote:

I now have my Bookmarks Toolbar looking how I like it. 

You're welcome.

GrogBlossom wrote:

I did rather like the rounded tabs rather than square tabs - can I have my cake and eat it too?

1. Open the Add-ons Manager (Ctrl+Shift+A; Mac: Command+Shift+A), then the Extensions category.
2. Next to Classic Theme Restorer, click the Options button.
3. On the Main tab, in the top left corner, choose "Curved tabs (Australis default)", or "Curved tabs (alternative)", or "Curved tabs (alternative Aero)".

GrogBlossom wrote:

Also, I'm not sure if I like tabs on very top or not... but cannot find a way to toggle that option. Possible? 

Also in the Classic Theme Restorer options window mentioned above, in the top left corner of the Main tab, choose between "Tabs not on top" or "Tabs on top (default)".

Thanks again GBM, you're the best!

Two minor points - not an "Options" button, but a "Preferences" button I saw. Also, didn't have 3 curved tabs choices, but two (alternative or Australis default).

But anyway, your help is spot-on, thanks very much!