Firefox Community Forum

After a recent update, I noticed that my toolbar changed suddenly. I was able to rebuild it how I like and most of it stays, however, the "Open A New Tab" button refuses to stay where I want it.

Whenever I open a new window of Firefox, the "Open A New Tab" button is found on the leftmost side of my screen beside the new tabs. If I go to the "Customize Toolbar" page, I am able to move it so it stays to the right of the rightmost tab, which is where I want it to be.

Anytime I open a new window, whether it's through dragging a tab onto another monitor, or opening Firefox the first time after turning on my computer, my change gets reversed.

How can I permanently move this button to the desired position?

This did not become an issue until an update about a week or so ago.

In firefox developer edition, when opening a new window of any kind, or when relaunching/opening the app, the new tab button always ends up on the left hand side. Going to the customization menu, I can move the button to the right side (next to the last tab), which is where I prefer it, however when opening any new window the button goes back to the left side