My desktop's computer browser features a small keyboard icon on the right side of the toolbar, which reveals a full keyboard once I click on it and thus let's me type using my mouse; this is especially useful when I change my usual keyboard language to another one, since this way I can see the new characters and don't need to guess where they are placed. I'd like to be able to use this icon also in my laptop, but I can't find how to do it; this keyboard icon does not appear in the toolbar > Customize menu, and I don't know where else I should look for it. == This happened == Every time Firefox opened