Recent answers to Am I the only one that can't watch videos on Youtube, and Vkontakte on the new Firefox beta 7?https://support.mozilla.org/en-US/questions/7639172010-11-18T13:15:58-08:00Create a new profile exclusively for the 4.0 beta version and create a desktop shortcut with -P "pro2010-11-18T13:15:58-08:00cor-elhttps://support.mozilla.org/en-US/questions/763917?page=2#answer-118030<p>Create a new profile exclusively for the 4.0 beta version and create a desktop shortcut with -P "profile" appended to the target to launch that profile.
</p>
<ul><li> <a href="http://kb.mozillazine.org/Testing_pre-release_versions" rel="nofollow">http://kb.mozillazine.org/Testing_pre-release_versions</a>
</li><li> <a href="http://kb.mozillazine.org/Profile_Manager#Creating_a_new_profile" rel="nofollow">http://kb.mozillazine.org/Profile_Manager#Creating_a_new_profile</a>
</li><li> <a href="http://kb.mozillazine.org/Using_multiple_profiles_-_Firefox" rel="nofollow">http://kb.mozillazine.org/Using_multiple_profiles_-_Firefox</a>
</li></ul>Installed 4b7 a couple of hours ago and couldn't get to my cox.com home page. Just a white display w2010-11-18T13:00:10-08:00JimLasVegashttps://support.mozilla.org/en-US/questions/763917?page=2#answer-118025<p>Installed 4b7 a couple of hours ago and couldn't get to my <a href="http://cox.com" rel="nofollow">cox.com</a> home page. Just a white display with nothing in the bookmark bar, address bar, Nothing. Period. Have OS 10.6.5. Have current version of Flash. Disabled all three of my ad ons. Can't even get to Google. Whenever running a Beta version of Firefox, instead of installing it directly to APPs I put it on the desktop and named it BETA.app. Always worked over the years. Guess I'll have to trash this version.
</p>luminoth continued here: /questions/765367
2010-11-18T09:06:25-08:00cor-elhttps://support.mozilla.org/en-US/questions/763917?page=2#answer-117989<p><b>luminoth</b> continued here: <a href="/questions/765367" rel="nofollow">/questions/765367</a>
</p>P.S. If Flash worked for you in Firefox 4 Beta 6 but not in Firefox 4 Beta 7 then the probem may b2010-11-17T23:09:43-08:00AliceWymanhttps://support.mozilla.org/en-US/questions/763917?page=2#answer-117858<p>P.S. If Flash worked for you in Firefox 4 Beta 6 but not in Firefox 4 Beta 7 then the probem may be specific your system. Read the Release Notes to see what is different between Beta 6 and Beta 7, in case it helps:
</p><p><a href="http://www.mozilla.com/en-US/firefox/4.0b7/releasenotes/" rel="nofollow">http://www.mozilla.com/en-US/firefox/4.0b7/releasenotes/</a>
</p><p>If the issue is with Firefox 4 Beta 7 then I suggest, for the time being, that you uninstall it (e.g., drag the Firefox.app to the Trash) and reinstall either Firefox 3.6.xx from <a href="http://www.mozilla.com" rel="nofollow">www.mozilla.com</a> or Firefox 4 Beta 6 from <a href="http://releases.mozilla.org/pub/mozilla.org/firefox/releases/4.0b6/" rel="nofollow">http://releases.mozilla.org/pub/mozilla.org/firefox/releases/4.0b6/</a>
</p><p>Here is the download link for Firefox 4 Beta 6, English-US, for Mac users:<br> <a href="http://releases.mozilla.org/pub/mozilla.org/firefox/releases/4.0b6/mac/en-US/Firefox%204.0%20Beta%206.dmg" rel="nofollow">http://releases.mozilla.org/pub/mozilla.org/firefox/releases/4.0b6/mac/en-US/Firefox%204.0%20Beta%206.dmg</a>
</p>Unfortunately, I can't disable hardware acceleration because the popup menu you would normally get, 2010-11-17T23:00:50-08:00AliceWymanhttps://support.mozilla.org/en-US/questions/763917?page=2#answer-117856<p><em>Unfortunately, I can't disable hardware acceleration because the popup menu you would normally get, isn't there. For example, when I go to a youtube video and control click on the black square where a video should be, I get the firefox control click menu instead. <br>The test page does not work, however both about:plugins and about:addons show that it is loaded and enabled.</em> <br>
<strong>---luminoth</strong>
</p><p>Is seems as if the Flash plugin is not working at all for you in Firefox.
</p><p>Does Flash work in Safari? If you have the same problem in Safari then the problem is with your Flash plugin installation. See Adobe's support document, <a href="http://kb2.adobe.com/cps/865/cpsid_86551.html" rel="nofollow">Troubleshoot Flash Player | Mac OS</a>
</p><p>If Flash is working in Safari but not Firefox, then you should troubleshoot Firefox, for example, by disabling any Firefox extensions that may be blocking Flash in "Tools -&gt; Add-ons -&gt; Extensions" or by <a href="/en-US/kb/new?title=Managing+profiles+" class="new" title="Page does not exist." rel="nofollow">creating a new Firefox profile</a> for testing purposes. See <a href="/en-US/kb/troubleshoot-and-diagnose-firefox-problems" rel="nofollow">Troubleshoot and diagnose Firefox problems</a>.
</p><p>At this point, I think it may be better if you started a new topic (<a href="/en-US/kb/new?title=ask+a+question" class="new" title="Page does not exist." rel="nofollow">as a new question</a> since this one was started by another Forefox user and is marked "solved". You can include <a href="http://support.mozilla.com/questions/763917" rel="nofollow">this link</a> for the background.
</p>Yes, I changed dom.ipc.plugins.enabled.i386.flash player.plugin to false, but there was no change in2010-11-17T08:53:28-08:00luminothhttps://support.mozilla.org/en-US/questions/763917?page=2#answer-117761<p>Yes, I changed dom.ipc.plugins.enabled.i386.flash player.plugin to false, but there was no change in behavior.
</p>Did you try to disable the plugin-container process as written in the http://kb.mozillazine.org/Plug2010-11-17T01:30:22-08:00cor-elhttps://support.mozilla.org/en-US/questions/763917?page=2#answer-117665<p>Did you try to disable the plugin-container process as written in the <a href="http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins" rel="nofollow">http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins</a> article&nbsp;?
</p>The test page does not work, however both about:plugins and about:addons show that it is loaded and 2010-11-16T22:15:11-08:00luminothhttps://support.mozilla.org/en-US/questions/763917#answer-117641<p>The test page does not work, however both about:plugins and about:addons show that it is loaded and enabled.
</p>If you get the regular Firefox right-click context menu instead of the one from the Flash player the2010-11-16T12:06:39-08:00cor-elhttps://support.mozilla.org/en-US/questions/763917#answer-117596<p>If you get the regular Firefox right-click context menu instead of the one from the Flash player then that means that the Flash player isn't loaded.
</p><p>Does the Flash player work on the Adobe test page?
</p>
<ul><li><a href="http://www.adobe.com/software/flash/about/" rel="nofollow">http://www.adobe.com/software/flash/about/</a>
</li></ul>Unfortunately, I can't disable hardware acceleration because the popup menu you would normally get, 2010-11-16T11:19:53-08:00luminothhttps://support.mozilla.org/en-US/questions/763917#answer-117584<p>Unfortunately, I can't disable hardware acceleration because the popup menu you would normally get, isn't there. For example, when I go to a youtube video and control click on the black square where a video should be, I get the firefox control click menu instead. If I go to a site like <a href="http://blip.tv" rel="nofollow">blip.tv</a>, there isn't even the black box where the video should be for me to click on.
</p><p>It may be worth noting that for me personally, I'm on a fairly old macbook (2006 I think). It has one of those awful Intel GMA 950s in it. Flash worked fine with beta 6, however.
</p><p>I'll read through the flash troubleshooting document and report back if anything helps.
</p>I'm having this problem as well. I'm fully updated to OSX 10.6.5, fully updated to flash 10.1.102.642010-11-15T23:18:22-08:00AliceWymanhttps://support.mozilla.org/en-US/questions/763917#answer-117444<p><em>I'm having this problem as well. I'm fully updated to OSX 10.6.5, fully updated to flash 10.1.102.64, and running beta 7. I just get a black box when I visit sites like Youtube and no video or image at all. Every site I've visited on this machine that uses flash seems to have a problem (for example, on <a href="http://nvidia.com" rel="nofollow">nvidia.com</a>, the "Choose your location" flash intro doesn't play). </em>
<br>---<strong>luminoth</strong>
</p><p>I have Firefox 4 Beta 7 on my new iMac computer with the latest OS X 10.6.5 and Flash 10.1.102 updates. I have no problem viewing Flash videos (including full-screen videos) like those on <a href="http://YouTube.com" rel="nofollow">YouTube.com</a> and the <a href="http://www.nvidia.com" rel="nofollow">www.nvidia.com</a> "Choose your location" animation you mentioned works just fine. My iMac has an ATI Radeon HD 4670 graphics display (256mb) and not nVidia, by the way.
</p><p>As a workaround, try disabling Hardware Acceleration in your Flash Player settings:
</p>
<ol><li>Control-click (right-click) on any Flash video or animation (even the "Adobe Flash Player Successfully Installed" Flash object at the top of the <a href="http://www.adobe.com/software/flash/about/" rel="nofollow">http://www.adobe.com/software/flash/about/</a> page)
</li><li>Click on "Settings"
</li><li>Clear the "Enable hardware acceleration" checkbox on the display tab.
</li></ol>
<p>Ref:
</p>
<ul><li> <a href="http://kb.mozillazine.org/Flash#Performance_or_display_issues_with_certain_Flash_videos" rel="nofollow">http://kb.mozillazine.org/Flash#Performance_or_display_issues_with_certain_Flash_videos</a>
</li><li> <a href="/en-US/kb/flash-videos-wont-play-full-screen" rel="nofollow">Flash videos won't play full screen</a>
</li></ul>
<p>P.S. If the above doesn't help, there are other suggestions you can try, here:
</p>
<ul><li> <a href="http://kb.mozillazine.org/Flash#Troubleshooting" rel="nofollow">http://kb.mozillazine.org/Flash#Troubleshooting</a>
</li><li> <a href="http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins#Disabling_crash_protection" rel="nofollow">http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins#Disabling_crash_protection</a>
</li><li> <a href="/en-US/kb/new?title=Managing+the+Flash+Plugin#Troubleshooting" class="new" title="Page does not exist." rel="nofollow">Managing the Flash Plugin</a>
</li></ul>Hi Cww, I checked on that setting and it is already set to true for me.
2010-11-15T22:20:39-08:00luminothhttps://support.mozilla.org/en-US/questions/763917#answer-117440<p>Hi Cww, I checked on that setting and it is already set to true for me.
</p>Can you try setting dom.storage.enabled in about:config to true?
(Go to about:config and find that s2010-11-15T06:16:06-08:00Cwwhttps://support.mozilla.org/en-US/questions/763917#answer-117320<p>Can you try setting dom.storage.enabled in about:config to true?
</p><p>(Go to about:config and find that setting, double click to set to true if it's false). Some people have reported that having it false affects flash videos.
</p>The crash that I reported before is reproduce-able when you buffer many videos at once and then clos2010-11-14T22:55:14-08:00FireTrollhttps://support.mozilla.org/en-US/questions/763917#answer-117241<p>The crash that I reported before is reproduce-able when you buffer many videos at once and then close any tab (one tab is enough) that contains the flash video, then the rest is just crashed with the message I mentioned before.
</p>@nlkflint
Please post your problem only in one thread or better create your own thread.
Then you can2010-11-14T11:57:24-08:00cor-elhttps://support.mozilla.org/en-US/questions/763917#answer-117170<p>@<b>nlkflint</b>
</p><p>Please post your problem only in one thread or better create your own thread.<br>
Then you can post all your system details and you can get full attention.
</p>PS the Tools>Add-ons>Plug-Ins shows Flash is enabled,
2010-11-14T10:17:39-08:00nlkflinthttps://support.mozilla.org/en-US/questions/763917#answer-117152<p>PS the Tools&gt;Add-ons&gt;Plug-Ins shows Flash is enabled,
</p>I have 10.6.5 updated, flash updated, and also cannot see videos. Black screen where the video shou2010-11-14T10:16:42-08:00nlkflinthttps://support.mozilla.org/en-US/questions/763917#answer-117150<p>I have 10.6.5 updated, flash updated, and also cannot see videos. Black screen where the video should play. I reinstalled 4.07 and Flash. I already had 10.6.5 and am up to date with software upgrades. It was fine with 4.06 and is not working with 4.07. How can I go back to 4.06?
</p>Still some problem with the flash... it crash so often (The Adobe plugin has crashed ... no report a2010-11-11T18:05:41-08:00FireTrollhttps://support.mozilla.org/en-US/questions/763917#answer-116538<p>Still some problem with the flash... it crash so often (The Adobe plugin has crashed ... no report available). This never happened before in beta 6 since I often put 20 tabs of youtubes open for weeks.
</p>I'm having this problem as well. I'm fully updated to OSX 10.6.5, fully updated to flash 10.1.102.642010-11-11T14:09:15-08:00luminothhttps://support.mozilla.org/en-US/questions/763917#answer-116527<p>I'm having this problem as well. I'm fully updated to OSX 10.6.5, fully updated to flash 10.1.102.64, and running beta 7. I just get a black box when I visit sites like Youtube and no video or image at all. Every site I've visited on this machine that uses flash seems to have a problem (for example, on <a href="http://nvidia.com" rel="nofollow">nvidia.com</a>, the "Choose your location" flash intro doesn't play).
</p>The problem is solved after I'm upgrading my OS X to 10.6.5. I wonder whether the upgrade or the res2010-11-11T13:35:43-08:00FireTrollhttps://support.mozilla.org/en-US/questions/763917#answer-116523<p>The problem is solved after I'm upgrading my OS X to 10.6.5. I wonder whether the upgrade or the restart that cure the problem since I haven't restart it for a month,&nbsp;;).
</p>