To open a new tab you can use ctl+t or the symbol in the shape of a vertical cross on the tab bar.

Are you using userChrome.css in the chrome folder in the Firefox profile folder that may need a update ?

• https://www.userchrome.org/what-is-userchrome-css.html

• /questions/1422733#answer-1601087 New tab "+" missing from tab bar with with 20 tabs or more

did not put on mozilla or firefox toolbar in justed opened a new tab opened

i use to have firefox or mozilla on my toolbar, do not know how to question or figure out what i am looking, is it adding tab firefox or mozilla to the toolbar, when on toolbar you would click on firefox for a new tab. thank you rodney l gandy sr

I'm not sure what you are trying to say. Do you want to add a Firefox icon to your main Windows Taskbar? If so, simply right-click on the Firefox shortcut icon and then left-click "Pin to taskbar".

Do you want to add a button on a toolbar inside Firefox which opens a new tab? If so, simply right-click on a Firefox toolbar and left-click "Customize Toolbar...". Look for the "Open a new tab" icon in the customize tab. Drag and drop it somewhere on your toolbar.