When I started using Firefox today, I found that I can't always click to open links. Often right-clicking to open in a new tab works, but I've run into at least one case so far that doesn't. Examples: 1. the link to go to the log in page for a medical practitioner - right clicking to open in a new tab didn't work, I was able to open it in a private window 2. a "confirm subscription" link in an email - I right-clicked to open it in a new tab 3. I'm logged out of my password manager (Proton Pass) or at any rate when I click on the Proton Pass icon in the toolbar nothing happens - normally it logs in, or if already logged in, then clicking the icon opens the vault. My computer installed a Windows update yesterday. I haven't futzed with any settings in Firefox or my usual security & privacy extensions recently. Not sure how to start troubleshooting this - aside from turning all of my extensions off just to be sure one of them isn't causing the problem.