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"YouTube Cookies Trouble" in Firefox 15 on Mac

Posted

Starting yesterday when using Flash Video Downloader in Firefox 15.0.1 running on a 2011 MacBook Pro running OS X 10.7.4 I started getting the following dialog box when I attempt to download any video from YouTube.

Youtube Cookie Trouble To continue download from youtube you have to clear youtube cookies. Do you want to clear Youtube cookies right now?

When I click the button for Flash Video Downloader in the menu bar I get this dialog box immediately and clearing cookies makes no difference, the problem persists and I can't begin a download. If I use the button at the lower left of the browser I can get Flash Video Downloader to put up the full window but all of the videos appear to be N/A, and don't show their size. If I click the Download button in that window nothing happens and in the Firefox download window the file is 0 kb in size.

This only happens on YouTube now and not other sites I frequent. It also behaves exactly the same on older Macs running older versions of Firefox and older versions of OS X. I have searched for the last day and can't find one single reference to this dialog box or this problem. Has anybody else seen this problem firsthand?

Chosen solution

I've already run through the usual reset, update, de-activate, re-activate, turn off everything else routine and nothing made any difference. However just after posting my question I was able to download a video from YouTube by making sure that right before I clicked on the Flash Video Download button in the menubar I cleared all cookies. The video then downloaded normally. If I make the mistake of clicking the DL button with even one existing cookie then there is no way to fix the problem, it is a continuous loop of the dialog box and no way to fix without a restart of Firefox. This is certainly a new development and no doubt due to something YouTube has changed on their side.

I don't allow many cookies and delete them every few minutes and always automatically delete them when Firefox closes, but this behavior only started within the last 48 hours and as I mentioned seems to be independent of my machine, OS, and browser version. It is limited to YouTube only though. I just wanted to post this because I'm probably not the first to encounter this problem and I'm sure others will see it soon. Thanks.

Read this answer in context 3

Additional System Details

Sites Affected

https://www.youtube.com/

Installed Plug-ins

  • Shockwave Flash 11.4 r402
  • The Flip4Mac WMV Plugin allows you to view Windows Media content using QuickTime.
  • iPhoto6
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • 5.1.10411.0
  • npmnqmp 071303000004

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/20100101 Firefox/15.0.1

More Information

Application Basics
Name
Firefox
Version
15.0.1
User Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/20100101 Firefox/15.0.1
Profile Folder
Show in Finder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
Adblock Plus
2.1.2
true
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
CoolPreviews
3.7
true
{CE6E6E3B-84DD-4cac-9F63-8D2AE4F30A4B}
Flash Video Downloader Youtube Downloader
3.6.8
true
artur.dubovoy@gmail.com
Inquisitor
1.4
true
Inquisitor@yahoo
Ant Video Downloader
2.4.7.1
false
anttoolbar@ant.com
Download Statusbar
0.9.10
false
{D4DD63FA-01E4-46a7-B6B1-EDAB7D6AD389}
DownloadHelper
4.9.9
false
{b9db16a4-6edc-47ec-a1f4-b86292ed211d}
SkipScreen
0.6.4
false
SkipScreen@SkipScreen
Important Modified Preferences
Name
Value
accessibility.blockautorefresh
true
accessibility.typeaheadfind.flashBar
0
browser.cache.disk.capacity
1048576
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size_cached_value
829440
browser.history_expire_days.mirror
180
browser.places.createdSmartBookmarks
true
browser.places.importBookmarksHTML
false
browser.places.importDefaults
false
browser.places.leftPaneFolderId
-1
browser.places.migratePostDataAnnotations
false
browser.places.smartBookmarksVersion
4
browser.places.updateRecentTagsUri
false
browser.search.useDBForOrder
true
browser.startup.homepage
http://www.youtube.com/
browser.startup.homepage_override.buildID
20120905151427
browser.startup.homepage_override.mstone
15.0.1
browser.tabs.onTop
false
extensions.lastAppVersion
15.0.1
font.language.group
x-western
keyword.URL
http://search.yahoo.com/search?fr=inq-x-ff&p=
network.cookie.prefsMigrated
true
network.http.max-persistent-connections-per-server
18
network.security.ports.banned
8118,8123,9050,9051
places.database.lastMaintenance
1346978045
places.history.expiration.transient_current_max_pages
104858
places.history.expiration.transient_optimal_database_size
167772160
places.last_vacuum
1299281083
privacy.cpd.sessions
false
privacy.donottrackheader.enabled
true
privacy.popups.showBrowserMessage
false
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.timeSpan
0
security.warn_viewing_mixed
false
Graphics
Vendor ID
0x8086
Device ID
0x 126
WebGL Renderer
Intel Inc. -- Intel HD Graphics 3000 OpenGL Engine -- 2.1 APPLE-7.18.18
GPU Accelerated Windows
1/1 OpenGL
AzureBackend
quartz
JavaScript
Incremental GC
0
Library Versions
Expected minimum version
Version in use
NSPR
4.9.1
4.9.1
NSS
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC
NSS Util
3.13.6.0
3.13.6.0
NSS SSL
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC
NSS S/MIME
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC

jscher2000
  • Top 10 Contributor
2376 solutions 21036 answers

Helpful Reply

Your "More system details..." shows Flash Video Downloader Youtube Downloader version 3.6.8. I noticed there is an update available on the add-ons site today. Maybe that will help?

Edit: The description of the update is "Fixed Youtube Download". https://addons.mozilla.org/en-US/firefox/addon/flash-video-downloader-youtube/#detail-relnotes (click to expand the version information)

Modified by jscher2000

philipp
  • Top 10 Contributor
  • Moderator
2048 solutions 8914 answers

Helpful Reply

hello, users of different downloading addons have reported similar issues with youtube recently - it's likely that youtube has implemented changes on their server-side that causes those extensions to break. please visit the website of the addon to inquire if there's already an updated version available or otherwise directly contact the developer of the addon and report the issue.

Chosen Solution

I've already run through the usual reset, update, de-activate, re-activate, turn off everything else routine and nothing made any difference. However just after posting my question I was able to download a video from YouTube by making sure that right before I clicked on the Flash Video Download button in the menubar I cleared all cookies. The video then downloaded normally. If I make the mistake of clicking the DL button with even one existing cookie then there is no way to fix the problem, it is a continuous loop of the dialog box and no way to fix without a restart of Firefox. This is certainly a new development and no doubt due to something YouTube has changed on their side.

I don't allow many cookies and delete them every few minutes and always automatically delete them when Firefox closes, but this behavior only started within the last 48 hours and as I mentioned seems to be independent of my machine, OS, and browser version. It is limited to YouTube only though. I just wanted to post this because I'm probably not the first to encounter this problem and I'm sure others will see it soon. Thanks.