If you think a bug might affect users in the 57 release, please set the correct tracking and status flags for Release Management.

Flash 11.8 blocked, cannot enable




Add-ons Manager
4 years ago
4 years ago


(Reporter: Joe Drew (not getting mail), Unassigned)


Firefox Tracking Flags

(Not tracked)




4 years ago
I've got Flash 11.8.800.94 installed on OS X, but Firefox claims it's disabled for my protection. It's been this way for at least a week.

Comment 1

4 years ago
Oh, and I should say that I'm on Firefox stable (23.0.1).

Comment 2

4 years ago
Can I have the contents of your about:plugins and also the link that the addon manager has for the blocklist?


4 years ago
Flags: needinfo?(joe)

Comment 3

4 years ago

Installed plugins
Find updates for installed plugins at mozilla.com/plugincheck
Shockwave Flash

    File: Flash Player.plugin
    Path: /Library/Internet Plug-Ins/Flash Player.plugin
    Version: 11.8.800.94
    State: Disabled
    Shockwave Flash 11.8 r800

MIME Type	Description	Suffixes
application/x-shockwave-flash	Shockwave Flash	swf
application/futuresplash	FutureSplash Player	spl
QuickTime Plug-in 7.7.1

    File: QuickTime Plugin.plugin
    Path: /Library/Internet Plug-Ins/QuickTime Plugin.plugin
    Version: 7.7.1
    State: Disabled
    The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.

MIME Type	Description	Suffixes
video/mp4	MPEG-4 media	mp4
audio/x-ac3	AC3 audio	ac3
video/x-m4v	Video	m4v
application/x-sdp	SDP stream descriptor	sdp
audio/AMR	AMR audio	AMR
application/x-rtsp	RTSP stream descriptor	rtsp,rts
video/3gpp2	3GPP2 media	3g2,3gp2
audio/mpeg	MPEG audio	mpeg,mpg,m1s,m1a,mp2,mpm,mpa,m2a,mp3,swa
audio/ogg	Ogg Audio	oga
audio/mpeg3	MP3 audio	mp3,swa
application/sdp	SDP stream descriptor	sdp
application/x-mpeg	AMC media	amc
video/x-msvideo	Video For Windows	avi,vfw
video/mpeg	MPEG media	mpeg,mpg,m1s,m1v,m1a,m75,m15,mp2,mpm,mpv,mpa
audio/aac	AAC audio	aac,adts
application/annodex	Annodex Media	anx
audio/x-gsm	GSM audio	gsm
video/sd-video	SD video	sdv
audio/x-caf	CAF audio	caf
audio/x-ogg	Ogg Audio	oga
audio/3gpp	3GPP media	3gp,3gpp
application/ogg	Ogg Multimedia Bitstream	ogg, ogx
application/x-ogg	Ogg Multimedia Bitstream	ogg, ogx
audio/mp3	MP3 audio	mp3,swa
video/avi	Video For Windows	avi,vfw
audio/mp4	MPEG-4 media	mp4
audio/x-aiff	AIFF audio	aiff,aif,aifc,cdda
video/x-mpeg	MPEG media	mpeg,mpg,m1s,m1v,m1a,m75,m15,mp2,mpm,mpv,mpa
video/3gpp	3GPP media	3gp,3gpp
audio/x-mpeg	MPEG audio	mpeg,mpg,m1s,m1a,mp2,mpm,mpa,m2a,mp3,swa
audio/x-aac	AAC audio	aac,adts
audio/3gpp2	3GPP2 media	3g2,3gp2
video/ogg	Ogg Video	ogv
audio/x-wav	WAVE audio	wav,bwf
audio/x-mp3	MP3 audio	mp3,swa
video/quicktime	QuickTime Movie	mov,qt,mqv
audio/x-speex	Ogg Speex audio	spx
audio/x-mpeg3	MP3 audio	mp3,swa
audio/x-m4a	AAC audio	m4a
audio/x-annodex	Annodex Audio	axa
audio/ac3	AC3 audio	ac3
audio/annodex	Annodex Audio	axa
audio/x-m4p	AAC audio	m4p
audio/speex	Ogg Speex audio	spx
video/x-annodex	Annodex Video	axv
video/annodex	Annodex Video	axv
audio/x-m4b	AAC audio book	m4b
video/x-ogg	Ogg Video	ogv
audio/aiff	AIFF audio	aiff,aif,aifc,cdda
application/x-annodex	Annodex Media	anx
video/msvideo	Video For Windows	avi,vfw
audio/basic	uLaw/AU audio	au,snd,ulw
audio/wav	WAVE audio	wav,bwf
audio/vnd.qcelp	QUALCOMM PureVoice audio	qcp,qcp
Java Applet Plug-in

    File: JavaAppletPlugin.plugin
    Path: /Library/Internet Plug-Ins/JavaAppletPlugin.plugin
    Version: Java 7 Update 25
    State: Enabled
    Displays Java applet content, or a placeholder if Java is not installed.

MIME Type	Description	Suffixes
application/x-java-applet;javafx=2.2.25	Java applet	
application/x-java-applet;version=1.4	Java applet	
application/x-java-applet;version=1.2.1	Java applet	
application/x-java-applet;version=1.2.2	Java applet	
application/x-java-applet;version=1.3	Java applet	
application/x-java-vm	Java applet	
application/x-java-applet;version=1.1.1	Java applet	
application/x-java-vm-npruntime	Java applet	
application/x-java-applet;version=1.2	Java applet	
application/x-java-applet;version=1.7	Java applet	
application/x-java-applet;jpi-version=1.7.0_25	Java applet	
application/x-java-applet;version=1.4.1	Java applet	
application/x-java-applet	Basic Java Applets	javaapplet
application/x-java-applet;version=1.1.2	Java applet	
application/x-java-applet;version=1.1	Java applet	
application/x-java-applet;version=1.1.3	Java applet	
application/x-java-applet;version=1.6	Java applet	
application/x-java-applet;version=1.4.2	Java applet	
application/x-java-applet;version=1.3.1	Java applet	
application/x-java-applet;version=1.5	Java applet	
application/x-java-applet;deploy=10.25.2	Java applet	
Silverlight Plug-In

    File: Silverlight.plugin
    Path: /Library/Internet Plug-Ins/Silverlight.plugin
    Version: 5.1.20513.0
    State: Disabled

MIME Type	Description	Suffixes
application/x-silverlight	Microsoft Silverlight	xaml
application/x-silverlight-2	Microsoft Silverlight	xaml
Microsoft Office Live Plug-in

    File: OfficeLiveBrowserPlugin.plugin
    Path: /Library/Internet Plug-Ins/OfficeLiveBrowserPlugin.plugin
    Version: 12.3.6
    State: Enabled
    Office Live Update v1.0

MIME Type	Description	Suffixes
application/officelive	Office Live Update v1.0	
Coupons Inc., Coupon Printing FireFox Plugin

    File: CouponPrinter-FireFox_v2.plugin
    Path: /Library/Internet Plug-Ins/CouponPrinter-FireFox_v2.plugin
    Version: Version 1.1.6
    State: Enabled
    Coupons Inc., Coupon Printing FireFox Plugin

MIME Type	Description	Suffixes
application/couponsinc-printer-plugin	Coupons Inc., Mac FireFox Coupon Printer Manager	
application/couponsinc-moz-printer-plugin-v401	Coupons Inc., Mac FireFox Coupon Printer Manager v401	

    File: iPhotoPhotocast.plugin
    Path: /Library/Internet Plug-Ins/iPhotoPhotocast.plugin
    Version: 7.0
    State: Enabled

MIME Type	Description	Suffixes
application/photo	iPhoto 700
Flags: needinfo?(joe)

Comment 4

4 years ago
In the addon manager UI for Flash, it should say something like "Flash is known to be vulnerable. Use with caution. <More Information>". I'd like to know what URL that "More Information" link takes you to.
Flags: needinfo?(joe)

Comment 5

4 years ago
I actually don't have such a link: http://i.imgur.com/XgY5W1n.png
Flags: needinfo?(joe)

Comment 6

4 years ago
That's about:plugins, not the addon manager.

Comment 7

4 years ago
That's from the addons manager, after clicking on Flash, but here's the full thing: http://i.imgur.com/uzK31Q8.jpg - still no link.
Looks like it's only Mac OS issue, works as expected on Windows 7 x64.


4 years ago
Flags: needinfo?(benjamin)

Comment 9

4 years ago
Is Flash actually disabled? What does the UI look like which says that Flash is disabled for your protection?
Flags: needinfo?(benjamin)

Comment 10

4 years ago
Yeah, Flash is disabled. Is this the UI you wanted to know about? http://i.imgur.com/9ySaXnq.png

Details links to https://www.mozilla.com/en-US/blocklist/ and Update to plugincheck.

Comment 11

4 years ago
Could you run the following script in your browser console and paste any results?

(function() {
  let bls = Cc["@mozilla.org/extensions/blocklist;1"].getService(Ci.nsIBlocklistService);
  let tags = Cc["@mozilla.org/plugin/host;1"].getService(Ci.nsIPluginHost)
  for (let tag of tags) {
    if (tag.name == "Shockwave Flash") {
      console.log("Flash blocklistState: " + bls.getPluginBlocklistState(tag));
      console.log("Flash blocklistURL: " + bls.getPluginBlocklistURL(tag));

Comment 12

4 years ago
No results, sadly. However, these prefs are set:

plugin.blocklisted.quicktime plugin;true

I have no idea why or by what, but this is a relatively new profile.

Comment 13

4 years ago
Hrm. We used to do a complicated dance to keep those .blocklisted prefs in sync with the actual blocklist service. We have fortunately ripped all that code out in FF24, and this shouldn't reoccur. You can work around the issue for now by upgrading to beta or resetting those prefs.


4 years ago
Last Resolved: 4 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 880675
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