Copy paste clipboard problem

Hello. I am trying to make use of the clipboard in Kde Arm.
When I select a text to copy from clipboard, and I try to paste it in the browser, nothing happens. Anyone knows how to solve this? Thanks

A little more info would be nice. What browser? How are you copying/pasting? Highlight/middle-click? Highlight/right-click-paste? Ctrl-C/Ctrl-V? If one of those methods isn’t working, try the other, it is likely a setting in your keyboard bindings or in your browser. If you still have issues, be a bit more specific.