I pinned an HTTPS site and it keeps reverting to HTTP when I start Firefox
I pinned a tab for https://us3.webmail.mailhostbox.com/appsuite/ and when Firefox starts it (almost?) always starts the tab as HTTP not HTTPS so I get a warning when I am about to log in and I have to manually change it to HTTPS. I've unpinned the tab, changed it to HTTPS, and re-pinned it, but the same thing happens again on next startup.
Opaite Mbohovái (3)
try adjusting browser.urlbar.update1.view.stripHttps(to true) and network.dns.disablePrefetchFromHTTPS(to false) in about:config and see if that fixes the issue
You can try the Firefox version from the official Mozilla server if you currently use a version from the repositories of your Linux distribution to see if that makes a difference.
@Eve @cor-el Thanks for the replies. Ironically, it hasn't reverted since I submitted the question (even though it kept on doing so)! I'll keep them both in my back pocket in case it happens again.