Just upgraded to Big Sur and my Command-R refresh keystroke no longer works on *some* sites in the latest version of Firefox. I've opened Firefox in the troubleshoot mode and it's still a problem. My f5 function key is working properly. How can I fix this?

Hi John, I doubt you can change Firefox from Command to Ctrl for those specific keyboard combinations. I think an add-on could do it, but you might not like that it would need permission to everything in order to listen for those keys.

Hi Jeff, could you start a new question at

https://support.mozilla.org/questions/new/desktop/form

and describe any pattern you notice to this problem? I think websites can intercept and re-purpose Command+R for internal functions, so be on the lookout for that possibility if the page has its own shortcuts. To disable a page from overriding built-in keyboard shortcuts, you can try this:

While you are on a page on the problem site, call up the Page Info dialog using one of these methods:

• Command+i (for Windows/Linux, Ctrl+i)
• (menu bar) Tools > Page Info
• click the lock icon in the address bar, on the drop-down click the > button, then at the bottom click "More Information"

When the dialog comes up, click the Permission icon at the top to show that panel.

Scroll down to "Override keyboard shortcuts" and uncheck the "Use default" box, and then select Block to disable the override. (This is saved immediately, so you can close the dialog.)

You might need to reload the page before that takes effect, I'm not sure.

Will do, thanks.