Safari randomly stopped playing Youtube videos

Just the other day Safari stopped playing Youtube videos. I have tried running safari in 32bit mode but nothing. I would appreciate any info or help, thanks.

I went to http://www.youtube.com/html5 and found that I was part of the HTML5 trial for YouTube and that YouTube videos should be playing via HTML5 and not Flash.
I left the HTML5 trial so that the video were being played by nasty old Flash... Guess what, it works.
Videos are now playing normally using Flash.
My suggestion is go to http://www.youtube.com/html5 and see if you are part of the HTML5 trial also, if you are, leave the trial and see how you go.
Lee

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Safari won't play youtube videos anymore. I've never had trouble in the past. I switched to chrome but then back to safari and changed the default browser to safari. Now safari won't open any sites that require a user and password. Any suggestions?

Hello everyone,
I've recently been getting error messages on youtube videos when using safari. This never used to happen. I tried using chrome but it didn't take care of the problem. When I set my default browser back to safari, safari won't open any websites that require a username and password. Any suggestions?

My case is different from those listed below. First, I'm running OS X 10.8.5 and Safari 6.0.5.
My problem is this:
I run a Google search, say, "youtube somesong", and from the hit list returned from google I
pick some selection. Youtube launches and plays the video without problems. However, when
i click on any of the alternate videos from the page's vertical list, only the name of the chosen video
appears beneath the video I just watched. The new selection itself is not loaded by Safari.
This occurs for any selection I choose. My way around this problem is to force a Safari reload of
the page by using the keyboard shortcut, Command-R. This fills in the old video window with the
video I just chose. Can I conclude that this is a Safari issue alone, or is it a Safari/Youtube combo gotcha? Anyway, the present condition *****.
This problem began sometime after i upgraded to Mountain Lion. I have reset Safari and have also
deleted the Youtube.com Cache, Cookies, and Local Storage from the Privacy settings under
System Preferences. I have also tested the problem by running Safari in 32 bit mode (no luck there).
If anyone out there has experienced this scenario, I sure could use a little help here.

Safari Does Not Play Youtube Videos

Hi,
I updated safari to the latest version (6.1.2) on my MacBook Pro (10.7.5) and now it does not play any Youtube videos at all. All I get is a black space instead of a video - neither video nor audio.
Does anyone know how to resolve the issue?
Best,
maybug

Go step by step and test.
1. System Preferences > Other/ Flash Player > Advanced > Delete All
     Press the "Delete All" button
     Install Adobe Flash Player.
    http://get.adobe.com/flashplayer/
    Follow the prompts. Quit Safari.
    Restart computer. Relaunch Safari.
2. Allow Plug-ins
    Safari > Preferences > Security
    Internet Plug-ins > "Allow plug-ins"
    Enable it.
    Press " Manage Website Settings" button for more options.
3. Check whether you are currently in YouTube HTML 5 trial.
     http://www.youtube.com/html5
    At the bottom left of the page uncheck the box beside
   "You are currently in the HTML5 trial".
4. Reset Safari.
    Click Safari in the menu bar.
    From the drop down select "Reset Safari".
    Uncheck the boxes beside all items.
    Check the box beside "Remove all website data".
    Click "Reset".
5. Turn off Extensions, if any.
    Safari > Preferences > Extensions
     Now try YouTube.
Best.

Yosemite 10.10.1 causing Safari not to play YouTube videos...

Hi guys/girls,
I installed Yosemite on my iMac (20-inch, Mid 2007) when it was first released and I had no issues whatsoever.
Last night I updated Yosemite to 10.10.1 and now all of a sudden Safari Version 8.0 (10600.1.25.1) won't play any YouTube videos. All I get is a black screen with a little audio clipping.
When using Firefox (v32.1.1) or Chrome (v38.0.2125.122) everything works ok.
Any thoughts?

Thanks for the response everyone - glad I'm not the only one having this issue!
The strange thing I'm finding some mixed results:
1) Some videos give me an error message but then play ok
http://youtu.be/MM6XG1DOwrs
2) Some don't play at all and cause the spinning ball to appear (adding a new tab and closing Youtube seems to fix this)
http://youtu.be/x3Md3O_XfoI
Hopefully Apple will fix this asap!!!

Safari stops playing youtube videos

Recently when playing You Tube videos I find that the playback overtakes the downloa, thereby stopping.
This happens with Safari and Firefox.
To clarify: The grey part of the progress bar does not stay ahead of the red playback bar.
I never had this problem before. I just switched from cable to Fios and have a higher band width then I had with cable.
I trashed the User>Home>Library>Preference, but that didn't fix the problem.
I have a 250GB HD with 172 GB available.
Any advice on how to correct this is appreciated.
Thanks.

First of all you should make sure that you have the latest version of Mac OSX. It's latest version is 10.6.8. Also you should make sure that you have the latest version of Safari browser on your Mac. If you have already have latest version of Safari browser and Mac OSX or updated your Safari browser and Mac OSX and this problem occurred again trying to download latest version of Flash Player and Shockwave Player. After downloading these two plugins for your browser if problem occurred again trying to reinstall your browsers.
I hope your problem solve with these tricks.

Safari in 64-bit mode on Snow Leopard does not play YouTube videos

Recently Safari stopped playing youtube videos while Safari is in 64-bit mode. The entire page renders correctly; however the area where the video is supposed to play remains a black box without controls. I can watch video from other sites, or I can watch video from youtube if I use another browser like firefox. Additionally, I can go to the youtube video owner's channel and view videos there just fine. It's only when I try to view videos that use the "http://www.youtube.com/watch?v=" method of displaying a video using Safari in 64-bit mode that it fails to play -- it plays fine with Safari in 32-bit mode.
Flash Version: 10,2,152,26
Message was edited by: Annorax64

scotso22 wrote:
@Annorax64: are you sure the problem is limited to the latest Flash Player? I'm pretty sure I was still running 10.1 when I first saw it, after getting an error "Safari Flash Player (Safari Internet plug-in) quit unexpectedly."
Upgrading to 10.2 didn't help.
It's not !. Flash player 10.1 is no better (as you can verify by downgrading here http://kb2.adobe.com/cps/142/tn_14266.html)

Safari not playing youtube videos

safari not playing youtube videos all of a sudden plz help playing on chrome and safari plug in and flash player is up to date and java is enabled ...

I found on an other post more informations. The problems is in OS X since Yosemite 10.10.1 it doesn't work, we will have to wait for a new Update form apple (10.10.2) to resolve that issue.
Use an other browser instead meanwhile. For more information ; Re: Yosemite 10.10.1 causing Safari not to play YouTube videos...

Why does Mac Safari stutter playing YouTube videos?

While playing YouTube videos (or other streaming videos) in Safari
using both Snow Leopard and Lion, the video's stutter and stop.
When I use the Google Chrome browser, the videos play perfectly.
I can find no way to set the buffering values.
I don't feel that this is a hardware or network problem.
This is very annoying, Apple please fix this.
An example video:
http://www.youtube.com/watch_popup?v=Yfbchq0xQmQ&vq=medium#t=

You posted in the correct forum... Most YouTube content requires the Flash plugin. Try troubleshooting.
Quit Safari.
Open System Preferences > Flash Player then select the Storage tab. Click: Delete All
Now uninstall the Flash plugin then reinstall new > Troubleshoot Flash Player | Mac OS'
Very important to uninstall the currently installed Flash plugin first before reinstalling.
Launch Safari From your Safari menu bar click Safari > Empty Cache
Now try a video.
BTW... if you have the ClickToFlash extension installed, that can prevent Flash based video from streaming. It can also be installed as a plugin in /Library/Internet-Plug-Ins.
And check to see if Safari is running in 32 bit mode. Right or control click the Safari icon in your Applications folder then click Get Info. If the box next to: Open in 32 bit mode is selected, deselect, quit then relaunch Safari.
BTW, this is not an Apple issue. Flash is third party software for which Apple is not responsible for developing or updating. That's Adobe's job.
Thoughts on Flash

Can't play YouTube videos on Safari

Hi I can't play YouTube videos on Safari any more. I have noticed that I can play videos on Safari but not on YouTube. When atempting to watch a video on You Tube it won't finish loading. It appears to load at first evenutally stops before the video can play. I then receive the "Plug-in Failure" message.
I am using Safari 5.1.7 on Mac OS X 10.7.4.
I believe I am using the latest version of Abobe Flash Player, which I downloaded when I first noticed the problem.
Please note I do not wish change to a different web browser. Thanks for reading.

Yes, but I could be mistaken. Below is the version of Flash Player I am using:
Shockwave Flash
Shockwave Flash 11.3 r300 — from file “Flash Player.plugin”.
application/futuresplash
FutureSplash Player
spl
application/x-shockwave-flash
Shockwave Flash
swf

How do I stop Thunderbird playing youtube videos in a tab

For ages I've been trying to get Thunderbird to work how it used to work but I seem to be fighting a loosing battle. I have done everything I can do to try and stop Thunderbird from ever using tabs. The latest thing I'm trying to stop is Thunderbird playing YouTube videos in a tab. Often I get emails with videos in them that play really small. If I click in the fullscreen option in the video it doesn't work and I've no idea why? So I click on the YouTube link in the video and I want it to open in Firefox. But instead it opens in a tab. This would be okay except that it plays really slowly and I can't reposition the tab. This is one of the reasons why I hate tabs in Thunderbird. I want to read things (or watch videos) in the centre of my screen, not where Thunderbird decides to open a tab, which is usually in the top right of my screen. With a very large screen it is much more frustrating than it would be on a laptop or other small screen.
Can someone please tell me how to fix this?
Another thing I would like to fix is the search function. I use search all the time and it is very powerful/useful. But again, when I click on the search results it opens the result in a tab. It would be okay if it opened a tab in the search results window but it opens the tab in the main Thunderbird window. It may also be okay if search opened a tab. But opening search in a new window and then showing the search items in a tab on the main window is just so frustrating. It almost makes me want to stop using search. I looked at using X Search Desktop for search but it no longer supports Thunderbird.
Again, can someone please tell me how to fix this?
I absolutely love Thunderbird but I really wish it were possible to roll back the changes that have been made in a number of areas. I spend so much time looking for add-ons just to get it back to how it used to be. With every new version there seems to be another change to the interface. I have to use "manually sort folders" just to get the folders to be in the order I want them. Like everyone else I want the security fixes that come with new versions but I don't want interface changes forced on me for no reason.
But now so many add-ons seem to stop working with each new release. I used to have an add-on that provided two simple buttons to increase/decrease the text size of incoming emails/RSS feeds. It also allowed me to set the font size/type I wanted for each incoming email/RSS feed and overide whatever was originally set. That stopped working a while back and I'd love to know if there is an alternative. Some RSS feed fonts are now set for smart phones and are simply massive in Thunderbird.
If anyone can help me with these issues I'd be most grateful.

You can check the home page (startup) setting:
*https://support.mozilla.org/kb/How+to+set+the+home+page - Firefox supports multiple home pages separated by '|' symbols
If you do not keep changes after a restart then see:
*http://kb.mozillazine.org/Preferences_not_saved

When I try to play youtube video I get the message of blocked plug-in, and I can not play video using Safari. (Youtube works fine with google chrome) I tried installing flash player HTML5 etc... but still no difference.

I just installed OSX Mountian Lion, and ever since then I can not play youtube video's. I get the message of 'Blocked Plug-in' in the youtube screen. I have tried installing Adobe Flash Player. HTML 5, also tried enabling/disabling java, but nothing worked out. Is there any way I can play youtbe vieos on Safar. (It works fine with Google Chrmoe, only safari has problem)

If you have the ClickToFlash extension installed, that can prevent Flash based video from streaming. Safari > Preferences > Extensions
It can also be installed as a plugin in /Library/Internet-Plug-Ins.
Try uninstalling the currently installled Flash plugin (required for most YouTube content) then reinstall new > Troubleshoot Flash Player | Mac OS
From your Safari menu bar top of your screen click Safari > Preferences then select the Advanced tab.
Select: Show Develop menu in menu bar
Now from the menu bar click Develop > Empty Caches

Is it possible to play youtube video in safari browser on WiFi in iOS devices ?

Hello Support,
I have a query regarding playing you tube videos in iOS devices (like iphone,ipad). I can able to play youtube videos in safari browser in iphone on 3G data connection but can not play the same video on WiFi. I am facing the same issue in the youtube iOS application also. Is it possible to play youtube video on WiFi in iOS devices ? Please help me to fix this issue.
Thanks

My understanding is that you should definitely be able to play youtube videos using a Wi-Fi network. To me, it sounds as though the issue may be more network related as the videos will work over cellular data. I have a couple questions I believe could help narrow down the exact issue:
• Is the device able to browse to other websites while connected to Wi-Fi, or will no sites work?
• Are there other devices (iPads, iPhones, computers, etc) that work on the same Wi-Fi network?
These are some troubleshooting articles that come to mind as well:
http://support.apple.com/kb/ht4199
http://support.apple.com/kb/TS1398

After uninstalling and downloading the latest Abobe Flash player, I can no lnger play youtube videos. I get the message "blocked plug-in". It works in Firefox, but not Safari.

After uninstalling and downloading the latest Abobe Flash player, I can no lnger play youtube videos. I get the message "blocked plug-in". It works in Firefox, but not Safari?

Frostbitblue,
in Safari’s Preferences, select its Security tab, and make sure that its “Internet plug-ins: Allow Plug-ins” checkbox is checked.

Flash player only works in administrator account. In the user account safari can't play flash videos (youtube or others) while firefox can. OSX 10.5.8 safari 5.0.5 / latest flash player. I have tried almost everything! Any help?

Flash player only works in administrator account. In other accounts safari can't play flash videos (youtube or others) while firefox can. OSX 10.5.8 safari 5.0.5 / latest flash player. I have tried almost everything. Reinstall safari and flash player, repair permissions.... Any help?

Repair permissions.
Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the menu bar, quit Disk Utility and restart your Mac.
If that didn't help, install the v10.5.8 combo update.
Mac OS X 10.5.8 Combo Update

I can't play youtube videos. I will play for about 12 seconds, then stop, and restart over again. I tried youtube on IE and it works there. What do you suggest I do?

I can't play youtube videos. I will play for about 12 seconds, then stop, and restart over again. I tried youtube on IE and it works there. What do you suggest I do? edit

This problem can be solved selecting manually the video resolution.

Safari randomly stopped playing Youtube videos

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