Firefox Community Forum

> some.site.example.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site. > > The issue is most likely with the website, and there is nothing you can do to resolve it. > > If you are on a corporate network or using antivirus software, you can reach out to the support teams for assistance. You can also notify the website’s administrator about the problem.

This is super frustrating. How to use Firefox for development purposes? There should be an option to add exceptions. I even went to settings and added an exception manually to no avail.

I'm going often through pain to use firefox for everything but then there must be a reasonable way to achieve the goals.

Please tell me there is a way to workaround this easily without compromising security of other sites that are being visited.

P.S. I can open same site with adding an exception on chrome.

Related question but with an answer that doesn't make sense in my case: https://support.mozilla.org/en-US/questions/1324365

Hi,

just for understanding:

Why can the Firefox source code (view-source) of a website be nearly three times the size compared with Chrome/Opera or when I save the Firefox source code marked and copied and then pasted and saved via an editor?

Example: Firefox 546,6 KiB Chrome/Opera 204,3 KiB via Editor 204,3 KiB (marked and copied Firefox source code)

Best

Peter

Can you please assist with issues that I am experiencing with LinkedIn not loading on Firefox? I have attached four examples, and summarised following. LinkedIn is working when accessing by Edge: on the same laptop, or by another computer. A summary of the four examples follows: 1. Another user’s feed not loading, 2. Group feed not loading, 3. My profile page not loading, and 4. Group feed not loading. The only control that relatively works is regular refreshing, though this is inconsistent, and is generally ineffective e.g. my feed may only be for a couple of: minutes, or hours; despite many refreshes, instead of > six hours with confidence by scrolling. The issue has been occurring for the previous four days, and other users are apparently experiencing similar, refer following. I unsuccessfully trailed the following: 1. Various minor setting modifications according to historical posts - I cannot recall all of the specifics, 2. Clear cache etc, and DNS flush, 3. Log in/out/restart, and 4. New profile.

I speculate may be a LinkedIn "bot" control feature, and my use appears like a "bot" - though I do not use any automated features. The justification for the “bot” speculation is the new profile apparently worked, prior to commencing my normal use - opening multiple tabs with LinkedIn, though this may be a coincidence. I also speculate that if was a "bot" control feature, LinkedIn would restrict my account, though is inconsistent with using by Edge.

The following may also be coincidental, though I have observed that emails in my Outlook webmail are slow to load, and occasionally require refreshing to read etc.

Other Users With Issues: I replied to the following discussion:

https://new.reddit.com/r/linkedin/comments/1dzi2dr/something_went_wrong_please_refresh_the_page_and/

https://new.reddit.com/r/linkedin/comments/1dy5j90/weird_maybe_firefox_linkedin_browsing_bug_anyone/

I can not connect to my BT Talk21.com email account because Secure connection failed Fire Fox did not connect. This problem has persisted for 48 hours and I can't run my business!! What should I do next???

Recently Firefox has stopped opening the Australian Super Member Login page following the insert of Username and Password from Roboform (My Password Manager). I do not have the same issue on Chrome or Edge. I have reinstalled Firefox hoping that this might solve the issue. Nothing changed.

I support my organisation's fleet of Windows computers, and historically we have automatically deployed the 32bit version of Firefox onto these devices. I would like to migrate all instances of Firefox to 64bit, but have found that installing 64bit Firefox on a device that already has 32bit Firefox dies not remove the 32bit version form C:\Program Files (x86)\ and just installs the new 64bit version into C:\Program Files\. This causes either the 64bit version to launch with no user profile loaded, or the user receives a message that they are launching an older version of Firefox. We can easily automate the uninstallation of 32bit Firefox during the install, but is there a way that we can programmatically load the users existing Firefox profile into the newly installed 64bit version of Firefox? I will be deploying the installation to around 7,500 computers, so a manual work-around isn't an option.

On a website I sometimes visit, I will occasionally upload images to share. Recently, I was using network access to upload images from a different computer, but that machine started acting up, and so Firefox tries to re-open the shared folder I was using on that other machine if I try to upload a file and cannot connect, so the file selection doesn't show up and I cannot use any other controls, just get the error SFX instead and I have to restart Firefox by closing it using Task Manager in order to restore function. How do I reset what folder it tries to open for file upload so it does not try to open that inaccessible network folder? It softlocks every time now.

Under Privacy and Security, Version 128.0 deleted the radio box allowing us to Clear History excepting Current Logins. Will my current email login now be deleted when I use the Clear History function?

Some time back, don't remember when, I opted in to Cloudfare on Firefox. I would like to get rid of it. I asked about this previously, got some instructions, thought it was fixed, but it reappears (randomly, it seems). I would like to purge it from my Firefox browser.