Plugin support in Thunderbird: Difference between revisions
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To enable plugin support set '''mailnews.message_display.allow.plugins''' '''true''' using the [[Modify_Thunderbird_settings | Config Editor]], and restart Thunderbird. You may also need to set '''javascript.allow.mailnews''' '''true''' and '''mailnews.message_display.disable_remote_image''' '''false''' in some cases to use the plugin. This makes you more vulnerable to malware and it tougher to protect your privacy. | To enable plugin support set '''mailnews.message_display.allow.plugins''' '''true''' using the [[Modify_Thunderbird_settings | Config Editor]], and restart Thunderbird. You may also need to set '''javascript.allow.mailnews''' '''true''' and '''mailnews.message_display.disable_remote_image''' '''false''' in some cases to use the plugin. This makes you more vulnerable to malware and it tougher to protect your privacy. | ||
Thunderbird supports its own copy of the same plug-in scanning settings as Firefox. Thunderbird will scan for plug-ins on startup. If it discovers one it will load it and your only option is whether to enable or disable it. Set '''plugin.scan.plid.all''' false using the Config Editor to prevent it scanning the directories specified in the Windows registry for PLIDs (a string in URI format that identifies a plugin uniquely). See [Plugin_scanning | plug-in scanning] for how to prevent it scanning some other directories for plug-ins. If you have problems identifying plugins that are loaded try setting '''plugin.expose_full_path''' '''true''' and either set about:plugins as your mail start page in Tools -> Options -> General -> Thunderbird start page or install the [https://addons.mozilla.org/en-US/thunderbird/addon/9695/ ViewAbout] add-on. | Thunderbird supports its own copy of the same plug-in scanning settings as Firefox. Thunderbird will scan for plug-ins on startup. If it discovers one it will load it and your only option is whether to enable or disable it. Set '''plugin.scan.plid.all''' false using the Config Editor to prevent it scanning the directories specified in the Windows registry for PLIDs (a string in URI format that identifies a plugin uniquely). See [[Plugin_scanning || plug-in scanning]] for how to prevent it scanning some other directories for plug-ins. If you have problems identifying plugins that are loaded try setting '''plugin.expose_full_path''' '''true''' and either set about:plugins as your mail start page in Tools -> Options -> General -> Thunderbird start page or install the [https://addons.mozilla.org/en-US/thunderbird/addon/9695/ ViewAbout] add-on. | ||
Thunderbird 3.1.* supported a '''plugin.disable''' setting. That seems to have been a temporary workaround that no longer exists. [http://forums.mozillazine.org/viewtopic.php?f=29&t=2258249&p=11045321#p11045321] | Thunderbird 3.1.* supported a '''plugin.disable''' setting. That seems to have been a temporary workaround that no longer exists. [http://forums.mozillazine.org/viewtopic.php?f=29&t=2258249&p=11045321#p11045321] | ||
Revision as of 23:11, 28 July 2016
Plugin support was added in Thunderbird 3.0. Supposedly it supported Java, Flash, PDF and Windows Media Player though there was no official list. "Plugins" is sometimes treated as synonymous with add-ons but in this case it means browser type plugins such as Flash, not extensions and themes. It was disabled in 3.1.6 due to performance issues caused when plugins were loaded.
Supposedly starting with Thunderbird 5.0 plugins are enabled by default if it isn't a email account, though that has only been verified for RSS feeds. Some users have reported YouTube videos would play in Thunderbird 3.3 alpha four builds while they wouldn't play in 3.1. Its not clear yet whether this is due to YouTube playing HTML5 video using WebM, and support for WebM being added in Gecko 2.0 (which Thunderbird 3.3 uses) or not.
To enable plugin support set mailnews.message_display.allow.plugins true using the Config Editor, and restart Thunderbird. You may also need to set javascript.allow.mailnews true and mailnews.message_display.disable_remote_image false in some cases to use the plugin. This makes you more vulnerable to malware and it tougher to protect your privacy.
Thunderbird supports its own copy of the same plug-in scanning settings as Firefox. Thunderbird will scan for plug-ins on startup. If it discovers one it will load it and your only option is whether to enable or disable it. Set plugin.scan.plid.all false using the Config Editor to prevent it scanning the directories specified in the Windows registry for PLIDs (a string in URI format that identifies a plugin uniquely). See | plug-in scanning for how to prevent it scanning some other directories for plug-ins. If you have problems identifying plugins that are loaded try setting plugin.expose_full_path true and either set about:plugins as your mail start page in Tools -> Options -> General -> Thunderbird start page or install the ViewAbout add-on.
Thunderbird 3.1.* supported a plugin.disable setting. That seems to have been a temporary workaround that no longer exists. [1]
External links
- "Check to see if your plugins are up to date" link at the top of the Add-ons Manager does not do anything bug report
- Investigate unnecessary plugin directory scans while loading messages, causes pauses/slow display during mail navigation or click bug report.
- Blocklist url updates for Thunderbird - Change blocklist more information url to https and support specifying application range for plugins in blocklist.xml bug report.
- Embedded (CID) Flash Movie in HTML email is not shown bug report
- Double clicking on PDF email attachment does not open PDF file bug report
- Cannot install plugins (such as Adobe Flash Player) bug report
- PLuginChecker add-on checks if there are any plugin installed without user permission.
