The icons next to the names of your bookmarks are called favicons. I don't think it's possible to remove them without the use of custom CSS code.

See https://support.mozilla.org/en-US/questions/1541734

I don't think it's possible

Hopefully someone knows how to use about:config to get rid of them.

No, wxie is right. Try to go to https://www.reddit.com/r/FirefoxCSS/ and search for tips.

No, wxie is right. Try to go to https://www.reddit.com/r/FirefoxCSS/ and search for tips.

I have been using userChrome.css to get rid of the icons for years using. That approach still works on the latest release, 147.

However, the firefox team has abandoned userChrome.css. See the following, where it says that css functionality may disappear without notice at anytime.

https://support.mozilla.org/en-US/kb/contributors-guide-firefox-advanced-customization

So ... hopefully someone knows how to use about:config to get rid of them.

To clarify, it has not been "abandoned", more that it is really challenging to support an unknown number of unknown modifications while still develop and ship new features (and maintain existing features). As such, userChrome.css customisation is not officially supported.

Changing Firefox preferences from the about:config page can sometimes break Firefox or cause strange behavior. You should only do this if you know what you're doing. Please read Firefox advanced customization and configuration options to learn more.

I know it is possible to use about:config to delete and stop websites from adding favicons to Firefox because I did it on my old laptop, and I learned how from the Mozilla support website . However, when I got a new computer and synced Firefox with my old laptop, only the passwords and bookmarks synced. Nothing in about:config synced and now the article on how to remove favicons using about:config vanished from the Mozilla support website. Why has Mozilla support removed this article? I Know that there was an article on Mozzil support that explained how to do it because that is how I did it on my old laptop, and I don't have favicons on its Firefox browser, but I cannot remember the steps to do it now. Somebody please give us this information!!!