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How to "forget" a HSTS setting.

Posted

I am a web developer. I tried HSTS (HTTP Strict Transport Security) in my developing website.

Now I want to cancel (forget) the HSTS setting for this site, but I cannot. Cannot I access my developing website with HTTP anymore?

I am a web developer. I tried HSTS (HTTP Strict Transport Security) in my developing website. Now I want to cancel (forget) the HSTS setting for this site, but I cannot. Cannot I access my developing website with HTTP anymore?

Chosen solution

Thanks! Finally I resolved this problem!

Your first reply: "Forget About This Site" (via the right-click context menu of a history item) is the solution, but I guess that once I access the site with HSTS in a browser tab, the tab remembers the HSTS setting after "Forget About This Site".

I tried to reload with F5 key in the same tab, so I cannot access even after "Forget About This Site".

I can access with a new tab now.

Thank you very much, cor-el.

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cor-el
  • Top 10 Contributor
  • Moderator
17567 solutions 158887 answers

Helpful Reply

Maybe "Forget About This Site" (via the right-click context menu of a history item) will help, but that will remove everything from that domain like bookmarks, cookies, passwords, cache, history, and exceptions, so be cautious if you decide to give that a try.

Maybe "Forget About This Site" (via the right-click context menu of a history item) will help, but that will remove everything from that domain like bookmarks, cookies, passwords, cache, history, and exceptions, so be cautious if you decide to give that a try.

Question owner

I tried "Forget About This Site" but still cannot access the developing site with HTTP. I guess the HSTS setting is saved in a different place from the history items.

I tried "Forget About This Site" but still cannot access the developing site with HTTP. I guess the HSTS setting is saved in a different place from the history items.
cor-el
  • Top 10 Contributor
  • Moderator
17567 solutions 158887 answers

Maybe rename secmod.db and if that still doesn't work cert8.db as well to see if that catches it.

Maybe rename secmod.db and if that still doesn't work cert8.db as well to see if that catches it.

Question owner

I renamed secmod.db and cert8.db, but still cannot access.

I renamed secmod.db and cert8.db, but still cannot access.

Question owner

Remove all files in my profiles folder => Cannot access. Private browsing mode => Can access! But I don't know why it works.

I want to access the site without private browsing mode.

Remove all files in my profiles folder => Cannot access. Private browsing mode => Can access! But I don't know why it works. I want to access the site without private browsing mode.
cor-el
  • Top 10 Contributor
  • Moderator
17567 solutions 158887 answers

Private Browsing bypasses the cache (disk cache is disabled) and gives you a new set of cookies.
So Firefox may be using the cache or data stored in the disk cache.

Did you already try to clear the cache?

  • Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

You may need to use Clear Recent History with the time range set to everything to clear the cache.

Private Browsing bypasses the cache (disk cache is disabled) and gives you a new set of cookies.<br /> So Firefox may be using the cache or data stored in the disk cache. Did you already try to clear the cache? *Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now" You may need to use Clear Recent History with the time range set to everything to clear the cache. *https://support.mozilla.org/kb/Clear+Recent+History

Chosen Solution

Thanks! Finally I resolved this problem!

Your first reply: "Forget About This Site" (via the right-click context menu of a history item) is the solution, but I guess that once I access the site with HSTS in a browser tab, the tab remembers the HSTS setting after "Forget About This Site".

I tried to reload with F5 key in the same tab, so I cannot access even after "Forget About This Site".

I can access with a new tab now.

Thank you very much, cor-el.

Thanks! Finally I resolved this problem! Your first reply: "Forget About This Site" (via the right-click context menu of a history item) is the solution, but I guess that once I access the site with HSTS in a browser tab, the tab remembers the HSTS setting after "Forget About This Site". I tried to reload with F5 key in the same tab, so I cannot access even after "Forget About This Site". I can access with a new tab now. Thank you very much, cor-el.
cor-el
  • Top 10 Contributor
  • Moderator
17567 solutions 158887 answers

You're welcome

You're welcome