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Some addons are automatically disabled?

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Sometimes it happens tha my Microsoft Office 2013 plugin are disabled. I need tgat plugins's for SharePoint Online Document editing and if plugin is not enabled then document is downloaded insted od opened in clinet Office application.

Please if someone could help me why is that happening? Is any way to check when that plugin is disabled? Is any way to check that setting from JavaScript code?

Sometimes it happens tha my Microsoft Office 2013 plugin are disabled. I need tgat plugins's for SharePoint Online Document editing and if plugin is not enabled then document is downloaded insted od opened in clinet Office application. Please if someone could help me why is that happening? Is any way to check when that plugin is disabled? Is any way to check that setting from JavaScript code?

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Sometimes plugins are disabled after an update, however I am not entirely sure what exactly caused it to disable.

Its possible to check when it is is disabled from the plugins page. With javascript, this would require a developer.

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Hello

Thanks for answer. I currently solve my problems with javascript code block where i check if plugin is installed or enabled.

Here is the code: if (navigator.plugins['Microsoft Office 2013'] === undefined) {

    //here put some code to notify user that plugin is disabled
  }
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Got it, thank you for clarifying. I know that some addons are disabled if they are considered incompatible with the newer version of Firefox. How to renable them

I did some search on the autoupdater for what checks actually happen: http://lxr.mozilla.org/mozilla-centra.../sdk.js#5442