1. If you installed Fedora40 and the WSClient can't be launched and prompt "No X11 DISPLAY variable was set" alert message, please install Oracle JRE to replace openJDK.



2. Fedora working with Wayland session, WSClient can't capture activity normally. You can switch the applications, such as Firefox to xwayland mode.


3. You can switch to /user/bin folder to launch Firefox with the below command.


4. Another method, add export MOZ_ENABLE_WAYLAND=0 to ~/.bashrc file.


5.Execute command $ source ~/.bashrc


6. Then launch firefox from the Terminal window.



7. Please input about:support in Firefox to check the configuration.

8. When the Window Protocol = xwayland, WSClient can capture activity from Firefox normally.