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SEC_ERROR_UNKNOWN_ISSUER for Google and Youtube

I am getting a certification issue when trying to visit 2 specific sites which are some of the most visited sites in the web: https://www.google.com and https://www.youtu… (read more)

I am getting a certification issue when trying to visit 2 specific sites which are some of the most visited sites in the web: https://www.google.com and https://www.youtube.com

The error it shows when trying to visit these 2 pages, is SEC_ERROR_UNKNOWN_ISSUER.

I have tried to troubleshoot it and follow the solutions recommended at: https://support.mozilla.org/en-US/kb/error-codes-secure-websites#w_the-error-occurs-on-multiple-secure-sites

however none of the solutions described in this guide worked to solve my problem.

In that guide, one of the suggested solutions is to scan my system for any malware. I used the following: Windows Defender Maleware Bytes AntiMalware Karpersky TDSSkiller however the results are all clean.

In the guide, it suggested that I check the clock as well. The system clock however is synchronized.

Last, I have resetted Firefox Profile but this didnt fix the issue either.

I shall note that the issue appeared yesterday and so far nothing helped fixing it. Not even the system restarts.

The issue about visiting these two sites, is limited only to Firefox.

I can access https://www.google.com and https://www.youtube.com without problems using Google Chrome and the Opera Browser.

Also, Google Mail and Google Translate work fine on Firefox. These two sites can be accessed with Firefox without causing any SEC_ERROR_UNKNOWN_ISSUER errors.

Asked by SilentResident 1 year ago

Answered by philipp 1 year ago

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Hmm. We’re having trouble finding that site.

I saw a post on this where they were instructed to go to safe mode and Viola! it works. That is fine, but it does not fix the problem. My Firefox browser opens all links… (read more)

I saw a post on this where they were instructed to go to safe mode and Viola! it works. That is fine, but it does not fix the problem.

My Firefox browser opens all links except what appears to be links from ads or forwarding links from a site to where something is being sold.

Whenever I click on one of these I get the, "Hmm. We’re having trouble finding that site." They open fine on Edge. Is there a setting on Firefox that is blocking these?

Asked by SJMaye 1 year ago

Answered by SJMaye 1 year ago

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Suddenly FF no longer streams ok.ru videos ... but Chrome still does

have the same addons in Chrome and FF (Kaspersky, adblocker; turned both off in FF to test, NO difference) this just happened, screen says "Video not found" for EVERY ok.… (read more)

have the same addons in Chrome and FF (Kaspersky, adblocker; turned both off in FF to test, NO difference)

this just happened, screen says "Video not found" for EVERY ok.ru vid

just want to stream again (never download, just stream)

this has been working correctly for YEARS till a few hours ago

of course I can watch with Chrome, but prefer to using FF


only a few of DOZENS that suddenly stopped working on FF (still play with Chrome) https://ok.ru/video/3113160935936 https://ok.ru/video/2723130051072 https://ok.ru/video/291281242787 https://ok.ru/video/328756300451 https://ok.ru/video/3717381622272 https://ok.ru/video/3844312730112 page https://ok.ru/video/c3924224 https://ok.ru/video/287260740259 https://ok.ru/video/269560449699

Asked by xlcrlee 1 year ago

Answered by xlcrlee 1 year ago

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vanguard login quit working

been using ff to login to vg for a couple years. ~2 weeks ago it quit working-i click login & nothing happens, the login page remains unchanged. login works with chro… (read more)

been using ff to login to vg for a couple years. ~2 weeks ago it quit working-i click login & nothing happens, the login page remains unchanged. login works with chrome & opera no problem.

Asked by dblazen84 11 months ago

Answered by cor-el 11 months ago

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PR_END_OF_FILE_ERROR

There are always PR_END_OF_FILE_ERROR type error given by Firefox when opening secure https:// official web sites of government of India, which end in gov.in Why not … (read more)

There are always PR_END_OF_FILE_ERROR type error given by Firefox when opening secure https:// official web sites of government of India, which end in gov.in Why not firefox browser allow opening such websites which are authenticated government web sites ?

Asked by cdk10 1 year ago

Last reply by cor-el 1 year ago

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New "403 Forbidden" webpage now blocking an everyday used website

My wife and I are both suddenly blocked from opening a fav website: https://www.freedomconsciousness.com/ We now get a 403 Forbidden webpage (generated by Wordfence) inst… (read more)

My wife and I are both suddenly blocked from opening a fav website: https://www.freedomconsciousness.com/

We now get a 403 Forbidden webpage (generated by Wordfence) instead.

Ditto when using the utube webpage, then in the About tab, trying to reach the website that way.

Trying the Mozilla technique of clicking on the lock icon ... I get both a secure connection message and a not-secure-connected message. Nothing I try after that affects anything. What to do???

Cheers Jaykay

Asked by Jaykay 1 year ago

Answered by Jaykay 1 year ago

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Graphics/pictures not displaying

As of a couple days ago, graphics/photos do not show on most pages. I have followed instructions, cleared cache, etc... which helps the first time in, but not retained, … (read more)

As of a couple days ago, graphics/photos do not show on most pages. I have followed instructions, cleared cache, etc... which helps the first time in, but not retained, so need to do this EVERY time. Why?

Asked by bennowak 1 year ago

Answered by cor-el 1 year ago

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SaveFrom.net Helper

The other day I downloaded SaveFrom.net Helper but then shortly after I deleted it. The program was deleted from the computer except that the green line with the program … (read more)

The other day I downloaded SaveFrom.net Helper but then shortly after I deleted it. The program was deleted from the computer except that the green line with the program name shows as an extension on the bar at the top of the Firefox page.

I cannot delete it. If I delete it once it reappears next time I load Firefox. The extension does not show up in add ons and extensions in Tools Firefox.

I have read an earlier reply that suggests delete Firefox and reinstall Firefox and that will get rid of it.

However, I am not anxious to try that as over time I have already extensions ad add ons and other customisation of Firefox, including all my bookmarks and I don't want to lose these and start again.

So here is my question. As the program is deleted and as their extension does not show up in Tools and then adddons, can I assume that the existence of the program name as an extension on one of the title bars at the top of Firefox is just an irritation and that this SaveFrom program cannot in any way add or do anything to my computer?

I can then live with it rather than deleting Firefox and starting again.

I would be so grateful for your help.

Thank you.

Asked by avwood 11 months ago

Answered by jscher2000 - Support Volunteer 11 months ago

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Firefox is not showing the correct page source

I am using Firefox and have noticed that when I do a view page source I do not see the current page, but a cached copy. To view the page source I first have to go to opti… (read more)

I am using Firefox and have noticed that when I do a view page source I do not see the current page, but a cached copy. To view the page source I first have to go to options and delete data.

Here is how to reproduce. 1. Go to a website showing changing data 2. Right click and select view page source 3. Examine the page source to see that it shows an older copy of the data, not the current data 4. Go to options and search on the term 'cache' 5. Delete the cached data 6. Go back to view page source and try again 7. Now the page source is the current data seen in Firefox

Asked by coatsbob 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Can't connect to router in firefox

Hi! Can't connect to my router panel in 192.168.1.1, probably due to bad cache. But there is no cache for 192.168.1.1 in firefox "data manager", but I sure it exist. I do… (read more)

Hi! Can't connect to my router panel in 192.168.1.1, probably due to bad cache. But there is no cache for 192.168.1.1 in firefox "data manager", but I sure it exist. I don't want to clear all cache and data. Incognito mode without addons doesn't work. I can establish connection in other browsers, includes another firefox browser. How could I clear cache for 192.168.1.1, if firefox show there is none?

Asked by mordat1 2 years ago

Answered by mordat1 2 years ago

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Error: Access Denied. You don't have permission to access

I can't access https://www.barnesandnoble.com/ without getting the following error message: Access Denied. You don't have permission to access "http://www.barnesandnoble.… (read more)

I can't access https://www.barnesandnoble.com/ without getting the following error message:

Access Denied. You don't have permission to access "http://www.barnesandnoble.com/" on this server.

I've tried to clear the history/cache and also turned off vpn.

It just happened, it was working a few moments ago.

Any help is much appreciated!

Jojo

Asked by joken674 1 year ago

Answered by cor-el 1 year ago

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Images will not load

I have Firefox 96.0.1. As of this morning, images will no longer load on any websites. The only thing that has changed since yesterday is that I followed some advice fr… (read more)

I have Firefox 96.0.1. As of this morning, images will no longer load on any websites. The only thing that has changed since yesterday is that I followed some advice from the Washington Post on how to prevent scam emails. I have spent nearly two hours searching for and following advice to restore images on Firefox, but nothing has worked. I need more direct assistance!

Asked by womanfield 8 months ago

Answered by cor-el 8 months ago

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SSL_ERROR_UNRECOGNIZED_NAME_ALERT

Firefox won't open my professor website: https://danielesirangelo.altervista.org/ and there's this error How can i fix this? … (read more)

Firefox won't open my professor website: https://danielesirangelo.altervista.org/ and there's this error How can i fix this?

Asked by Gabriele Grillo 1 year ago

Last reply by cor-el 1 year ago

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Some websites' fonts are thin and barely readable

Hello, I have had this problem for a while now and I am not sure when it happened but it's been like this for around a year now. Some we websites (NOT ALL) appear to me l… (read more)

Hello, I have had this problem for a while now and I am not sure when it happened but it's been like this for around a year now.

Some we websites (NOT ALL) appear to me like they have a thin, pixelated font and it's hard to read them sometimes. See screenshot.

I have already checked my Windows' ClearType settings and that seems to be fine. Is there another solution to this?

Asked by SharpAmethyst 1 year ago

Answered by FredMcD 1 year ago

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websites working on Chrome but not on Firefox

Hello everybody, There are more and more websites that have functions that no longer work with Firefox and force me to use Chromium instead. Do you if there is any chance… (read more)

Hello everybody,

There are more and more websites that have functions that no longer work with Firefox and force me to use Chromium instead. Do you if there is any chance that an upcoming release will put everything right?

Thank you in advance Virginie

Asked by Virginie 1 year ago

Answered by ·´¯`·...¸>-)))º> ~dbben 1 year ago

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Cloudflare loop "checking your browser before accessing"

This issue is with me for some time now I guess 6 to 12 months, I have circumvented it by simply using other browsers that don't have the issue, it is only in Firefox. I … (read more)

This issue is with me for some time now I guess 6 to 12 months, I have circumvented it by simply using other browsers that don't have the issue, it is only in Firefox.

I have noticed that it seems to be a reoccurring issue for many people reading through help topics.

At the moment I am using: Mozilla Ubuntu Firefox 91.0

 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0

Starting Firefox in "Safe mode/Troubleshooting mode" through the "Application menu" -> "Help" -> "Troubleshoot Mode", doesn't fix the problem.

... "Did you check the date/time and time zone on your computer?" (As suggested in an older topic)

Automatic synchronization with an Internet time server, is set to "ON"
My "Time Zone" is set manually set to the correct "Time Zone"

Since the issue is only in Firefox and not in Chrome, Chromium or Opera, there is something that Firefox is doing that Cloudflare doesn't like or visa versa....

I have noticed in other posts that the blame is simply shifted to Cloudflare, but why do other browsers then not have this problem ?

Opening the no longer existing website (from another help topic here about the same issue), that is still known by Cloudflare, shows the problem if you got it too -> http://animedao.com/

See my uploaded screenshot to see it is only in Firefox.

Asked by allemaal_onzin 1 year ago

Answered by allemaal_onzin 1 year ago

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How do I disable rich audio presence that Firefox now does with Windows 10?

Honestly, I have no idea how to describe it. I loved how when I played a video on Firefox, it wouldn't pop up with that annoying video title whenever I changed my volume.… (read more)

Honestly, I have no idea how to describe it. I loved how when I played a video on Firefox, it wouldn't pop up with that annoying video title whenever I changed my volume. Now, when I'm watching a video or playing audio, this happens. And, it doesn't even get it right most of the time! Like for example, it does this instead! That's not even the page I'm on!

Is there any way for me to get rid of this? Thanks

Asked by sheepy404 2 years ago

Answered by jscher2000 - Support Volunteer 2 years ago

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Web MIDI Support

Will Mozilla implement MIDI for musical instruments? I went to sign up to the Yamaha Soundmondo web site and immediately upon landing on the web site I got this message (… (read more)

Will Mozilla implement MIDI for musical instruments? I went to sign up to the Yamaha Soundmondo web site and immediately upon landing on the web site I got this message (on the far right- SYNCH Web MIDI not suported Please Use Chrome) and took a screen shot of it. It wants me to download Chrome. There is no way on earth I am installing Chrome on any of my devices. Google knows far too much already. Any way to let Mozilla know Firefox needs this capability? I can’t be the only musician using Firefox.

Thanks,

Jerry

Asked by jerryc34 1 year ago

Answered by TyDraniu 1 year ago