📅  最后修改于: 2022-03-11 14:48:17.848000             🧑  作者: Mango
Close all open Firefox windows.
Open the browsing history by pressing Ctrl + Shift + H (Cmd + Shift + H on Mac)
Go to the site for which you want to clear HSTS settings.
Now right-click on that site and then click on Forget About This Site. Keep in mind that this will clear all data of the site present in Firefox.