hello, I don't understand why I can't see the icons of the modules at the right side of the address bar, as it was before. So I can't use the modules, for example to translate smth.
Alle svar (1)
Sometimes toolbar buttons will "overflow" onto a drop-down menu (button looks like a large »). You can use the Customize screen to rearrange buttons if higher priority buttons are overflowing and there are others you prefer to overflow instead. More info on Customize: Customize Firefox controls, buttons and toolbars.
Was that the problem, or are they not there, either?
A common problem is when user switch from regular browsing to private browsing, some extensions may need to be given permission to run in private windows. More info: Extensions in Private Browsing.