Why the latest Firefox won't play YouTube videos

Similar Questions

• Firefox 7 won't play YouTube videos

  Running Win7 x 64. Upgrade to Firefox 7, then YouTube videos stopped playing. YouTube keeps insisting that I have to install the latest flash player, what I've done several times ("install_flashplayer10_mssa_aih.exe" and "install_flashplayer11x64_mssa_aih" versions), clear cookies, restart and all that crap. Firefox refuses to play YouTube videos. Internet Explorer 9 (x 64) plays great YouTube videos. Don't use Firefox more. You've got to SUPPORT your application instead of users leaving Wade. It is also why I HATE the upgrade. It causes too often new incompatibilities when I just want to leave what works, the hell alone.

  The Adobe forum, someone suggested

     * go to http://forums.adobe.com/thread/909550 and
           o download the 64-bit uninstaller
           o download the 64-bit installer
     * close all browser windows, then run the downloaded uninstaller
     * restart Windows
     * delete any remaining files in
           o C:\Windows\system32\Macromed\Flash
           o C:\Windows\syswow64\Macromed\Flash
     * now run the downloaded installer
  

  It still does not work. Then someone else said to install the ActiveX Installer, I found somewhere online.

  THEN finally it worked. But I still don't understand why I have to jump through additional hoops, which are not explained in the first place-YT says I need to upgrade (even if my old machine W2k with FF 3 and Flash 10 works fine), I click on the link on YT taking me to Adobe, I download and install like lead instructions , but it does not work. Why didn't ActiveX installs as well as the installer of Flash if necessary?

• V27, 27.1, won't play YouTube videos. Even in safe mode

  I can't watch videos on my default browser, the latest Firefox v 27. I think that I am not alone in this.

  I do not have the latest versions of Flash Player, Real Player, and Javascript is enabled (not java)

  I found it first in the videos of my favorite site of cats (cheezeburger..), but I just find that it comes up with videos of Serif community more. Video accessed via FP work, even when the so-called YouTube (clicked)

  Work live YouTube videos, but not the videos of YouTube accessible via cheezburger links.

  These defects occur only in Firefox 27 and videos play OK in Maxthon 3, (Chrome and Opera - the last time I checked). I know that you do not recommend this but can tell you exactly how to reload the previous version of Firefox, V26 - I had no problem with that.

  I tried to run FF27 in safe mode, no effect. I don't want to lose the different add-ins I use, if I don't want to reset to the factory settings.

  I think is not necessary.

  Click with the mouse right button on the Bookmarks box or in the bar (press F10 or alt to see the title bar) title, and then click Customize

  Then drag the address located above the tabs of stripe bar and.

  • Customize toolbars

  Go to Subject: config search browser.tabs.closeWindowWithLastTab change itsvalue false

  • Subject: config

• Firefox can't play youtube videos (only from youtube, other video sites work well)

  Since about a week ago firefox in my laptop can not read the youtube videos (only from youtube, videos from other sites and flash games work well), both on the site or embedded on another site. This shows only "an error has occurred. "Please try again later".
  I use firefox 13.0.1 and the latest version of the flash plugin.
  My laptop is i5 with win7 64 bit and it has clean, no viruses or malware.

  I tried all the solution posted here, but nothing works.
  I tried to uninstall - reinstall both firefox and flash, disabled add-ons, safemode, downgrade from earlier, flash, uninstall realplayer, changed the dns, reconfigured my modem, my curse what ISP (perhaps connection related?), still unable to play videos from youtube.

  I tried to use different computer, I used my old pc winxp with the old version of firefox (with the same configuration as the firefox I use in my laptop) and my ipad, they can play videos, but playback is stuttering which never happened before.
  Curiously, I've tried chrome (on the same laptop) and it works well, no stutters.
  This problem has something to do with the firefox updates, updates, flash, both, or something else?

  Please help me, I don't want to go back and forth between browsers just to see the video on youtube and I really want to change browser.
  Thank you!

  It's very strange... it will also be a very long shot, but it is possible that due to the long url (& feature = relmfu) it worked. I highly doubt this is the case.

  I recommend not to clear your cookies, either of them or one of them to youtube.

  And you've probably already tried this, but playing the video on the various quality parameters may do something.

  And finally, have you tried to contact youtube/google on this subject, or restart your pc after making sure that all your stuff is up-to-date? (you have probably both)

• Safari Version 10.0 (11602.1.50.0.10) won't play YouTube videos.

  New version of Safari (Version 10.0 (11602.1.50.0.10) will not play videos from YouTube.) I get a message saying that Safari does not support any video format.

  Safari > Preferences > Extensions

  Uncheck the boxes next to all extensions and test them.

  Enable the extensions one by one and test.

  To uninstall an extension, select it and click the "Uninstall" button

  Click here for the extension plug can cause this kind of problem.

• El capitan Safari won't play YouTube videos

  When I fall on a You Tube video on a Mac, or go site directly on YouTube, the videos are empty (black) with massage

  «Your browser does not currently recognize the video formats available.»  Click here to visit our frequently asked questions about HTML 5 video. »

  

  The next page said: supported browsers include Apple Safari.

  

  What Miss me?

  Thank you for using communities of Apple support, Cosman.

  Your post, Safari will play is no longer videos using Safari on your MacBook Pro on OS X 10.11. It also seems that it is a recent development, so we'll get it working again.

  Install and manage extensions Safari on your Mac - sometimes an extension may be the culprit. Disable the extensions you have installed for Safari, quit Safari and test. If it works again, turn on an extension at the same time, then exit and restart Safari to find what the cause of the problem.

  Update the software on your Mac - Make sure that your Mac is up = to = date with everything.

  Try safe mode if your Mac does not start -even if the start up your Mac, safe mode will not fail it starts successfully.

  I hope this helps!

• update won't play youtube videos

  so I updated my iphone5 to the last ios 9.3.2 and the youtube site or custom app play videos. no idea how to address this issue.

  Try restarting of strength:
  Hold the home and power buttons at the same time until the Apple start-up logo appears.

• Firefox won't play .ogv video files when loading a server. Does anyone have answers will fix this?

  I read the suggestions to resolve this, and none of them work. I've updated my .htaccess to match the MIME types for .ogv, I downloaded the binary files and ASCII, neither method works. The .ogv file plays well when you load from a local file, but it will not play seen from a remote server. I confirmed with my hosting company the .htaccess and other issues for HTML5 are up-to-date. Safari and Chrome play the HTML5 videos very well, but not Firefox. Does anyone have concrete answers as to what is the problem. I also use .webm and .mp4 video files, but none of these formats work in Firefox either.

  I pestered my hosting a bit more and told them that all topics help here said it was a hosting problem. They double-checked and did a little work on their end, and * voila *, everything works fine now!

  The bottom line advice: Pester your hosting service to solve this problem!

• I can't play YouTube videos, or open Flash on Firefox-based pages. I have already installed the plugin Flash a number of times.

  Can't play YouTube videos and cannot load Flash components, which work on other browsers.

  There are some compatibility issues between the last Flash drive and a few Add-ons Firefox or settings. Could see you if anything in this article helps you: 11.3 Flash does not load video in Firefox.

• I have Firefox installed 42.0 and works correctly. Yahoo on Firefox indicates this, but Yahoo on Chrome keeps asking me to upgrade to the latest Firefox

  I use mainly Firefox and Chrome only as an emergency backup. I still have backup third IE and Yahoo by default, thus opening 'IE' takes me directly to Yahoo.com. In Chrome and this 'fake IE', Yahoo says to upgrade to the latest Firefox. I even updated a second time to 42.0 Firefox but Chrome and 'fake IE' Yahoo wants the latest update me of Firefox. In Firefox, there is none that question. If so, can or should be done?

  airider said

  And I don't know how Firefox/Yahoo and non Yahoo/Chrome or IE/Auto-Yahoo acknowledges what version I am running.

  Browsers generally identify themselves to Web sites. If you want to see what your browsers send, you can use my test page - the "user agent" string is displayed in red:

  https://jeffersonscher.com/RES/jstest.php

  It is a little confusing: browsers may raise on behalf of other browsers to inform Web sites that they can deal with the pages designed for other browsers.

  But browsers do not send a list of ALL of your software on your computer - thank God - so if you visit a site with chrome, it cannot know which version of Firefox, you have, or even if you have Firefox at all.

  There is an exception to this absolute statement, called Flash Local Storage Objects, sometimes called super-cookies. If you visit a site in the browser F and allow the site to use Flash and store data on your computer, then when you visit the same site in the browser to C, if you allow the site to use the Flash, it can read these data and know that you have already visited and connect your two browsers.

• visited links not changing color using the latest Firefox and windows 10

  running windows 10 and the latest firefox freshly downloaded and installed.
  have checked the visited_links is enabled, and I'm not running in private mode
  I know it's only a problem of firefox like links change color using other browsers

  You can check for problems with the database places.sqlite file in the Firefox profile folder.

  • http://KB.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox
  • https://support.Mozilla.org/KB/bookmarks+not+saved#w_fix-the-bookmarks-file
  • Maintenance: https://addons.mozilla.org/firefox/addon/places-maintenance/

• Why I can't play youtube videos?

  When I try to play youtube videos it is not play and it gives out message lik e "year error occurred, please try again later." but when I play the same thing on chrome, it worked, I installed the flash player lasted, but still I get this error please help me.

  Reload the Web page while bypassing the cache

  • Hold down the SHIFT key and click the reload with a left click button.
  • Press Ctrl + F5 or Ctrl + SHIFT + R (Windows and Linux)
  • Press command + SHIFT + R (Mac)

  Clear the cache and cookies from sites that cause problems.

  Clear the Cache: Tools > Options > advanced > network > storage (Cache) offline: 'clear now '.

  Remove the Cookies from sites causing problems:

  • Tools > Options > privacy > Cookies: "show the Cookies".

• I have a desktop Mac OS 10.2.8 which is the latest Firefox to download?

  I have a desktop Mac OS 10.2.8 which is the latest Firefox to download? Jaguar's later I can load on my Mac. I use it only to get/send mail Yahoo. What is the latest version, I use and where I can get it. Right now am running Mozilla Firefox 2.0.0.20. Please let me know as soon as POSSIBLE. Thank you. I don't mean the update for my windows PC.

  From Firefox 3.0, 3.5, 3.6, the minimum for Mac OSX has been changed for OSX 10. 4. then from Firefox 4.0, the minimum being OSX 10.5. Then from Firefox 16.0 minimum was OSX 10.6 + since. This Intel as PPC support has been removed from Firefox 4.0

  • https://www.Mozilla.org/en-us/Firefox/2.0/system-requirements/
  • https://www.Mozilla.org/en-us/Firefox/3.0/system-requirements/
  • https://www.Mozilla.org/en-us/Firefox/4.0/system-requirements/
  • https://www.Mozilla.org/en-us/Firefox/17.0/system-requirements/

  So the old Firefox 2.0.0.20 was the last who could run under OS x 10.2.x

• Twitter is inconsistent with the latest Firefox.

  After that I've upgraded to the latest FireFox

  When I go to Twitter.com , what happens
  http://ScreenSnapr.com/v/ufFzmM.PNG
  I tried cleaning my cache and registry and use cCleaner. It still does not.

  It works fine in IE.

  OK, then another thing to try: Please enter: config in the address bar, search for the preference named network.http.accept - encoding & right click and restore the default that...

• After the upgrade to the latest Firefox, my icon disappeared from my screen, and I can't find how to retrieve

  After the upgrade to the latest Firefox, my icon disappeared from my screen, and I can't find how to get it back.

  Go to START then all PROGRAMS then find MOZILLA FIREFOX, right-click on it, select SEND TO and select DESKTOP (CREATE SHORTCUT).

  Thank you

  Please check 'Resolved' the answer really solve the problem, to help others with a similar problem.