I'm new to Opera and running the following version:
- Version: 45.0.2552.635
- Update stream: Stable
- System: Mac OS X 10.12.4 64-bit
I've installed some extensions that let me utilize the sidebar a little more.
However whenever I try to enter text into a field that one of these extensions theoretically lets me edit I just get the error sound from my Mac.
For example:
- I have installed the popular V7 Notes extension but I can't edit any of the notes, nor the folder names for the notes. To be clear: I can create new notes just not change their contents.
- I have also installed Vertical Tabs which supports grouping tabs, and although I can move tabs to a group I can't edit the name of the group.
Yes, my keyboard works (see the words in this post for evidence 
).