Firefox Support Forum

Since I updated to version 113.0.2 every time I try to open certain websites, Firefox shows an error message "SEC_ERROR_UNKNOWN_ISSUER". Once I choose to accept the risk and continue it redirects to the IP address "79.137.248.81" that redirects to spam. This happens on multiple sites, certain popular sites such as google work perfectly.

Yesterday I uninstalled and installed the browser. I rkilled and scanned my system with Malwarebytes, Avast and HitmanPro. I also have no malicious addons I found. Nothing worked.

I am attaching pictures of how the error shows.

Please Help.

In the last month Firefox using google search simply refuses to search, this is becoming annoying to the point where I will start using other browsers. Is there a fix for this?

Error: "Secure Connection Failed

An error occurred during a connection to accounts.firefox.com. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the web site owners to inform them of this problem."

When it happens: - Irregular frequence. The same websites once work once don't. They work with Chrom/Edge/From my mobile(same wifi/router). - Sometimes I have to refresh the page a few times - Happens for all sort of webistes. From local news, to GitHub/Youtube/Google/Any website

Steps I have taken: - Cleared cache/cookies - Reset PC/Firefox - Cleared all extensions - Deleted Firefox (And manually deleted all folders in AppData related to Firefox) and reinstalled afterwards

Nothing helped. Any idea what is going on? I checked Mozilla documentation for SSL issues, but it didn't help either

A month ago I started to have problem with twitch. After 5minutes or 2 hours- random times or random tabs, if I have opened more than 1, which is always the case. Some tabs or all, again it's random will give twitch 2000 error and refresh, closing tab,etc nothing will work, except closing WHOLE browser, not just tabs and this is not guaranteed that it will work.

I'm losing my mind with closing whole browser-windows-tabs on different monitors and then re-opening all of that again when I get 2000 error and I always do get it.

Did like 50 re-installs, it's always the same. I tried to go back to older version, but Firefox always want to create new profile saying I have old version installed and I DO NOT want that, I want everything as it is right customized,etc right now.

I have a blog hosted on Render. The base URL provided by them is https://parker-codes.onrender.com. This URL works perfectly, in all browsers.

I purchased a domain from Google and then linked a CNAME record to the Render one: https://blog.parker-codes.dev. This URL works in many browsers except for Firefox Mobile (on Android). I receive the error "Address not found. The browser could not find the host server for the provided address."

- I flushed the DNS cache and checked that it propagated across the globe. I used nslookup to verify the domain resolution. - I tested in various other browsers on desktop (Safari, Chrome, Firefox) and mobile (Chrome) and they all work. - I turned off mobile extensions. I also tried in a private window. Still no luck. - I reached out to Google support. They don't see any domain or DNS issues on their end.

From all of this, it appears that the Firefox mobile browser has a bug that can't load the site for some reason. It can't properly resolve the host even though many other browsers can.

I run Windows 11 on my Laptop. Every few days, Firefox slows down so much that it becomes essentially unusable. If I uninstall and then reinstall, it works fine for a few days, and then it repeats its slow performance. I like Firefox, but if this continues, I will have to switch browswers.

Please help.

David

When editing - composing a new email in Yahoo mail, the ENTER key is not making a NEW LINE. Resulting, I cannot write multi-line emails. But, when switching to Google Chrome, I have no issues, and ENTER key is working as it should.

Scrambled Fonts: I see that many people have this issue. I am unable to resolve this. Starting in safe mode fixes the issue temporarily, but I am tired of this. As Firefox is the default browser throughout all my Apple Macs in my studio, I need to resolve this bug. I have also checked Safari and Chrome to verify this is a Firefox issue. The other browsers do not scramble fonts, and I have found no helpful topic article that can fix this.

Before I jump to Chrome as my default browser, I thought I would contact support to see if this can be salvaged.

From the last week Firefox started to give me the error "Secure Connection Failed" / SEC_ERROR_INADEQUATE_KEY_USAGE, preventing me to access some intranet sites. The first time I tried the "Refresh Firefox" procedure found at the beginning of the dis-installation function (started through the standard "Add or remove programs" Windows 11 interface). Now this error re-appears only for one of the internal sites from time to time. If I close all the browser windows and re-open Firefox, the error changes to "Warning: Potential Security Risk Ahead" / MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT (which is an error I'm expecting since the intranet site is using an intenal Certification Authority that I've not yet put among the trusted ones) and with this message I can now proceed to the site by selecting "Advanced..." and "Accept the Risk and Continue".

Which is the reason for SEC_ERROR_INADEQUATE_KEY_USAGE error? I cannot find a mention for it inside https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean ... Is there a way to debug it? Or to avoid re-occurring and the need to restart Firefox?

Firefox version is "113.0.2 (64-bit)" on Windows 11 (10.0.22621.1702).

Hi, since today I have those wird glitches on YouTube videos (attached image). I've tried restarting Firefox, clearing browser cache and cookies, disabling all browser extensions and nothing helped. On other browsers videos works fine so it's not problem with YouTube

There is a bug when I try to make a video (Twitch, Youtube, ...) go full screen. I click in the full screen button and the video does not expand to the edges of the screen (the screen is shrunk slightly). There is a fix, but it requires the user to put the Firefox window in full screen and then put the video in full screen.

The other web browsers on my mac does not have this issue.

I searched for this issue and found one other reporting about this several years ago when quantum was first released - supposedly it was fixed. But it's still present here.

Firefox 113.0.2, MacOS Ventura 13.4

Hi,

I am using Windows7 64bit. I have never had this problem before. Suddenly I am having this issue that whenever I paste some text in the address bar, or use Paste and go option, for example I am looking up a difficult word in a web page, I would copy it and Paste it or Paste and go in the address bar, Firefox crashes. It crashes even in troubleshooting mode. I have refreshed Firefox twice but no luck. Uninstalling and reinstalling helped for some time, but the problem is back. I have latest version of Firefox.

HI Support team,

when iam using <input type="datetime-local" name="myTime" id="myTime"> tag its not populating time in firefox which is 113.0.2 (64-bit) version iam using and its working other browsers can you please help to fix this one. please let me know more details.

thanks & Regards, Giri

I just installed Firefox 2 days ago on a new computer and have no problems till today. I was watching a movie when suddenly all tabs crashed. I have tried uninstalling and reinstalling, checking for malware, making sure firefox was up to date, clearing cache data and history, disabling plugins running troubleshooting mode and restarting my PC. Please help I cannot use Firefox at all.

Just recently been experiencing the 400 Bad Request error on Kick.com (a live streaming platform) for about a couple hours now. Never had any issues prior.

Was informed that this same issue is happening on other browsers and the only solution is a "quick fix" (clear site cookies) which only works for literally a second. When the page is reloaded the error message pops back up.

Please help, thank you!

I have been with FF for years now but I started to notice a few months back that sometimes a web site I want to go to would not load with FF - a blank page would come up. Also, that some sites were very slow to load. I would go to EDGE and the sites pop right up with no problems.

Some examples - StartLogic, VERY slow to load on FF. United Health Care - I bring up the site, put my login info in and it brings up a blank page. I go to EDGE with both of these programs and no problems. There are other sites that I have the same problem with.

What's going on with FF? I would like to keep using it but I am finding more and more sites that act like this.

Tks - jb

After I boot my system I am not able to open Firefox as it complains about an open instance. After around half a minute the file disappears on its own.

Deleting the lock file manually works for starting firefox, but seems to sometimes delete my cookies as well.

The issue is not reproducible by just logging out and in again.

Firefox Browser 113.0.2 (64-bit) "Mozilla Firefox for Garuda Linux"

OS: Garuda Linux x86_64 Kernel: 6.3.5-zen1-1-zen DE: Plasma 5.27.5 WM: KWin

The last update 113.0.1 was when I really noticed it being slow. None of the current suggestions have any effect. I have restarted several times, cleared cookies and history, flushed dns and have gone through all settings. Privacy is set at "standard" and not using a VPN and have turned off add blockers with no effect either. I have to check, but I don't think I have any add-ons except for color on home page.

If I do a speed test, ping is kinda slow, download is half what it should be at times, and every test shows ZERO upload all using several sites to test from . The only thing not done is shutting down av which I won't do. Anyone else seeing this issue? Any other suggestions than the go-to stuff here? Windows 10