If this suggestion has a pin icon attached, then this means that this is website that is pinned on the Firefox Home page.

• https://support.mozilla.org/en-US/kb/customize-items-on-firefox-new-tab-page
• https://support.mozilla.org/en-US/kb/customize-your-new-tab-page

Thanks @cor-el

I did find these pages. It suggests you hover over the url you want to delete and then three dots will appear. No such thing.....

Another suggestion would be to click the gear icon in the top right corner. Again: No such thing.

Could there be a (readable) file somewhere I can edit?

I do remember the last time deleting some prefs.js file. Not sure though. The one I think it was is empty, however, so deleting it wont do much good I fear. I backed it up anyway and tried to remove it with sudo rm -f ....(filename.pref.js) but linux wont let me remove it. I thought I was in charge :-)

I might add that since a former update from Fedora and/or Firefox, Firefox itself behaves strangely. e.g. When I click a link in a (Thunderbird) email, Firefox will startup but is unusable, no content and I cannot enter any other url, well it wont respond to any other url. When I 1st start Firefox and then click the link in the email it will work as intended. Most movieclips (YouTube and newspapers) will not play any more. I am --><-- this close to say farewell to Firefox, but I used it for 20+ years now and will not make that decision lightly. I tried several solutions, removed and re-installed Firefox. I did install a librewolf version alongside just to watch youtube and newspaper clips.

I think I managed to solve this particular problem.

First of all, when I start with typing a space in the URL field, it shows the most visited sites and finally shows the 3 dots. I could then delete a few URLs. The pinned URL, however, is not listed when I type a space.

I then changed (settings --> home --> New Windows and Tabs) the new Tab setting from 'Blank page' to 'Firefox home'. Now I am getting some large tiles upon opening a new tab, and FINALLY, the 3 dots to manipulate the URL. So I unpinned the Fedora start page (it disappeared immediately).

I then changed my 'new Tab' setting back to 'blank page' again.

Could this be a bug in Firefox? I do not expect to have to reset preferences back to default before changing settings and then back again.

You should be able to open about:newtab or about:home directly to make changes to the Firefox Home page. You can find all available about pages listed on the about:about page and possibly bookmark this page.