The problem disappeared after a new browser update to version 6.7.3329.14
The plugin stopped working on Vivaldi 6.7.3329.9 x64 after updating the browser. Win11x64. Checkboxes ("Native accessibility API support" and "Web accessibility")both checked
The plugin stopped working on Vivaldi 6.7.3329.9 x64 after updating the browser. Win11x64.
The plugin stopped working on Vivaldi 6.7.3329.9 x64 after updating the browser