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facebook was working fine now suddenly I get this stuff about them not using a trusted security certificate and firefox won't open the site AT ALL! :(

SEE BELOW

This Connection is Untrusted

         You have asked Firefox to connect

securely to www.facebook.com, but we can't confirm that your connection is secure.

         Normally, when you try to connect securely,

sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified.

         What Should I Do?
         
           If you usually connect to

this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue.

       www.facebook.com uses an invalid security certificate.

The certificate is not trusted because no issuer chain was provided. The certificate is only valid for FF

(Error code: sec_error_unknown_issuer)

Unable to login gmail. After entering user name and password, says, Your browser's cookie functionality is turned off. Please turn it on. Even after clearing cache and cookies, enabling cookies, starting firefox in safemode, resetting firefox, Says the Same thing. I have tried all troubleshooting information provided by mozilla support and all were unsuccessful in solving the problem. I have the same problem with internet explorer and chrome also.

Since I've upgraded to Firefox 19.x, font rendering has been completely broken. Fonts are all messed up, distorted, etc...

See here: https://support.cdn.mozilla.net/media/uploads/images/2013-03-07-20-12-39-1f0313.png

I've read through many suggestions about changing options in about:config, and various other settings, but nothing seems to work.

The browser is totally useless like this.

Any help on how to fix the font issue would be greatly appreciated!

When surfing the net a page sometime pops up asking a few survey questions or hijacks me to a Doctor OZ page. In the website address it displays Server.BannersDontWork How can I remove this and thus preventing it from disturbing me again?

Firefox Aurora 21.0a2 running on Windows 8 Pro x64.

Extensions & Addons installed: Adblock Edge 2.0.3 App Button Remove 1.0 Cleanest Addon Manager 7.0 Greasemonkey 1.8

Greasemonkey script installed: Youtube Center 1.31.3

Problem: Whenever I watch Youtube videos there is a chance that the videos will be cut short for seemingly no reason. I originally thought that the fault was with the addon Tweak Network which I removed. After doing some testing I believed this to have solved the problem but alas, it still remains although not to the same degree as before. I've tried to disable each addon one after another and none seems to solve the problem. FWIW my internet has been acting dodgy as of late but I haven't really lost the connection or experienced anything wrong except 50% slower speed than usual.

I have Firefox 18. I have the latest Adobe Flash installed (after doing a full uninstall and reinstall). I have cleared the cache, cookies, etc.

No matter what I try, YouTube videos will not play in Firefox. I always get the same message:

"An error occurred. Please try again later."

If I copy the exact same link into Explorer (which I normally detest using) it plays perfectly. So clearly the fault lies with Firefox.

What can be done to fix this bug?

I do not have any more information. I do not know how snap.do got on my computer nor do I know how to get rid of it. I cannot get firefox to run because I cannot get rid of snap.do.

Edited by a moderator due to language. See the Rules & Guidelines .

Mozilla home page ---> search bar ---> goes to Yahoo search engine.

I have searched & looked up other user's problems with this:

https://support.mozilla.org/en-US/questions/933375?esab=a&as=aaq

I have tried all of the steps (about: conifg, renaming/deleting spigot file, reset)

And nothing works.

I'm running Win xp. Please help me.

I had a new window open on me claiming to be an official survey from firefox. Here is the link:

http://survey-central.corerhythums.com/?sov=62563501&hid=fljnjnrhflpprprnj&id=XNSX.z1413zb36532b

Anyone else had this issue?

This code work in explorer, crome, omniweb and safari but not in firefox. I have also tried on other computers.

<video width="540" height="380" poster="../image/min_släkt.png" controls="controls" >
  <source src="../film/mata_in.webm"  type="video/webm"/>
  <source src="../film/mata_in.mp4"  type="video/mp4"/>
  <source src="../film/mata_in.ogg"  type="video/ogg"/>
  <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="540" height="380" id="FLVPlayer">
    <param name="movie" value="FLVPlayer_Progressive.swf" />
    <param name="quality" value="high" />
    <param name="wmode" value="opaque" />
    <param name="scale" value="noscale" />
    <param name="salign" value="lt" />
    <param name="FlashVars" value="&amp;MM_ComponentVersion=1&amp;skinName=Clear_Skin_1&amp;streamName=../film/infoga_bild&amp;autoPlay=false&amp;autoRewind=true" />
    <param name="swfversion" value="8,0,0,0" />
    <!-- Den här parametertaggen uppmanar användare med Flash Player 6.0 r65 eller senare att hämta den senaste versionen av Flash Player. Ta bort den om du inte vill att användare ska se uppmaningen. -->
    <param name="expressinstall" value="../../Scripts/expressInstall.swf" />
    <!-- Nästa objekttagg är för webbläsare som inte är IE. Dölj den för IE med hjälp av IECC. -->
    <!--[if !IE]>-->
    <object type="application/x-shockwave-flash" data="FLVPlayer_Progressive.swf" width="540" height="380">
      <!--<![endif]-->
      <param name="quality" value="high" />
      <param name="wmode" value="opaque" />
      <param name="scale" value="noscale" />
      <param name="salign" value="lt" />
      <param name="FlashVars" value="&amp;MM_ComponentVersion=1&amp;skinName=Clear_Skin_1&amp;streamName=../film/infoga_bild&amp;autoPlay=false&amp;autoRewind=true" />
      <param name="swfversion" value="8,0,0,0" />
      <param name="expressinstall" value="../../Scripts/expressInstall.swf" />
      <!-- Webbläsaren visar följande alternativa innehåll för användare med Flash Player 6.0 eller äldre. -->
      <div>
        <h4>Innehåll på den här sidan kräver en nyare version av Adobe Flash Player.</h4>
        <p><a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Hämta Adobe Flash Player" /></a></p>
      </div>
      <!--[if !IE]>-->
    </object>
    <!--<![endif]-->
  </object>
</video>

Is there anyone who can explain what I do wrong?

Facebook does not open at all. All I could see is a blank page with the address (https://fa...) displayed in the tab. I updated from 18 to 19 but the problem persists. Please help me.

Help Me Please!

I'm use Firefox Version 20.0 and Install Add-on Shockwave Flash V.116.602.180 Why Can't Watch Video In Dailymotion Oops, We are experiencing some difficulties with this video, please try again later . (error2116)

I can Watch Video in Dailymontion for Web Browser Safari no problem?

(Youtube and web video Other I can Watch no problem? Can't Watch Dailymotion Only)

Sorry I Speak English A little, but not very well.

I have the latest BBC iPlayer and Adobe Air installed, and am using 64 bit Windows 7 and Firefox Nightly (installed only yesterday)

Whenever I try to download content from the BBCi site, I'm prompted to download the desktop player again - and again, and again, and again ... And yet IE 64 bit works without a hitch, which is a real pain as I would rather not go anywhere near IE.

Is this something I've done wrong, or some kind of conspiracy ? I can find no answers to this problem anywhere.

I have had no previous problems with loading Facebook until today. The page loads with text only, flush left, no graphics, and it loads very slowly.

I have deleted my cache, history, cookies. I have restarted in Firefox Safe Mode. Nothing has worked.

As far as I know I am running the latest versions of Java and Flash Player.

Recently there had been problems with Yahoo Mail and java, I updated but still unable to use it. The strange thing is that I have a PC (XP) whre it will not work and a laptop (win 7 ) where it does work. Both computers have the latest update of Java and both have the most current version of FF. Anyone have any ideas why one works and the other does not. Maybe it is not java, but I can't think of anything else. Open to suggestions. Thanks

I always used Firefox as my browser. Now I can't open Facebook nor does the weather channel page load correctly. I uninstalled Mozilla Firefox and then reinstalled it but it didn't fix it. I can get FB when I use Internet Explorer.