SUMMARY Using the browser extension FF (115.0.2 (64-bit), Manjaro ) breaks the ability to Ctrl+C copy in Google Sheets. Copying from the Google Sheets menu entry works fine. Disabling the browser extension and reloading the Google Sheets tab allows Ctrl+C to work normally. STEPS TO REPRODUCE 1. Install the browser extension 2. Attempt to Ctrl+C in google sheets (silently fails, no browser error) 3. Ctrl-V pastes the previous clipboard value SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 5.27.6 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.3-1-MANJARO (64-bit) Graphics Platform: Wayland Processors: 8 × 11th Gen Intel® Core™ i5-1130G7 @ 1.10GHz Memory: 15,4 GiB of RAM Graphics Processor: Mesa Intel® Xe Graphics
Disregard, there's another factor at play here. I don't believe the browser extension is the root cause.