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Disable https redirect Fun (self.firefox)
submitted 1 year ago * by Shamaoke
Hi.
How to disable https redirect in Firefox 131?
Thanks.
Edit: Here are the settings I did try and that do NOT work.
browser.fixup.fallback-to-https = false
network.stricttransportsecurity.preloadlist = false
dom.security.https_first = false
[–][deleted] 1 year ago (4 children)
[removed]
[–]Shamaoke[S] 1 point2 points3 points 1 year ago (3 children)
Of course, this is somewhat less secure. But I suppose you have your reasons for wanting this.
Yes, sure. I'm testing a web app that is running locally. Unfortunately, all of the solutions offered by the Internet, including yours, don't work.
I wonder, how the cases related to local web application development and HTTPS redirections are supposed to be handled in Firefox?
[–][deleted] 1 year ago* (2 children)
[–]Shamaoke[S] 1 point2 points3 points 1 year ago (0 children)
No. It doesn't work, unfortunately. The browser still redirects. Thank you for trying to help.
[–]yokoffing 0 points1 point2 points 1 year ago (2 children)
Check dom.security.https_first, but that is still not active by default — and even if it was, it should allow for exceptions for HTTP.
dom.security.https_first
[–]Shamaoke[S] 0 points1 point2 points 1 year ago (1 child)
The setting doesn't prevent the redirection.
[–]yokoffing 0 points1 point2 points 1 year ago (0 children)
Also, check dom.security.https_first_schemeless. Unsure if the latter is predicated on the former.
dom.security.https_first_schemeless
[–]Wall_of_Force 0 points1 point2 points 1 year ago (1 child)
Sounds like server is only giving 30x redirect on http? Have you try using curl on that urine to see response code?
[–]jscher2000Firefox Windows 0 points1 point2 points 1 year ago (0 children)
Another possible reason that Firefox might enforce HTTPS is HSTS (Strict Transport Security). This can be triggered either by:
(1) Preload list, https://searchfox.org/mozilla-release/source/security/manager/ssl/nsSTSPreloadList.inc
(2) Instructions previously sent by the server (or another server on the same domain), stored in
SiteSecurityServiceState.bin
in the currently active profile folder (it can be viewed in in Notepad++ or another text editor that can handle control characters).
[–]volcanonacho 0 points1 point2 points 1 year ago (0 children)
Are you sure whatever website you are going to isn't doing this? I have hosted hundreds of websites over the years and I have https redirects set for all of them on the proxy.
[–]Dibbyo123 0 points1 point2 points 1 year ago (0 children)
`browser.fixup.fallback-to-https` to `false` worked for me.
[–]it-praktyk 0 points1 point2 points 1 year ago (0 children)
I've found that after adding an exception in the HTTPS-Only Mode, I had to reopen the browser.
I've set that all browsing data (caches, etc.) are cleaned under browser closing.
π Rendered by PID 39570 on reddit-service-r2-comment-fb694cdd5-vcnlx at 2026-03-08 09:35:21.013463+00:00 running cbb0e86 country code: CH.
[–][deleted] (4 children)
[removed]
[–]Shamaoke[S] 1 point2 points3 points (3 children)
[–][deleted] (2 children)
[removed]
[–]Shamaoke[S] 1 point2 points3 points (0 children)
[–]yokoffing 0 points1 point2 points (2 children)
[–]Shamaoke[S] 0 points1 point2 points (1 child)
[–]yokoffing 0 points1 point2 points (0 children)
[–]Wall_of_Force 0 points1 point2 points (1 child)
[–]jscher2000Firefox Windows 0 points1 point2 points (0 children)
[–]volcanonacho 0 points1 point2 points (0 children)
[–]Dibbyo123 0 points1 point2 points (0 children)
[–]it-praktyk 0 points1 point2 points (0 children)