This is, by default: / Mozilla Firefox / defaults / pref /. To avoid updating and switching to the ESR branch, we must completely close our browser and go to the browser folder where the settings are saved.
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How to stay on FIrefox 52 with security updatesįortunately, Firefox 52 has an extended ESR support version that will be compatible with these plugins, at least until the next ESR. However, when the next Firefox 53, this trick will stop working and the NPAPI plugins will no longer be compatible with the browser in any way. NPAPI plugins have their days numberedĪs we said, this trick will work in Firefox 52 and allow us to continue using these add-ons during the life cycle of this version.
When the browser reloads, we will be able to see how these plugins are active again in the browser (by entering about: addons) and, if we have them correctly installed on our computer, it will allow us to continue loading this content. We double click on it to change its value to "false" and we restart our browser. To activate these plugins in this version of the browser, simply open the configuration section » about:config ✺nd search for the entry: How to use Java, Silverlight and other NPAPI plugins in Firefox 52 This new version was also the first to block the use of NPAPI plugins by default, except Flash, causing all web pages that use, for example, Java or Silverlight to stop.įortunately, it is still possible to continue to use, temporarily, this type of content in the browser.
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If you think you’ll need a little longer to transition away from such plugins you should download Firefox ESR (Extended Support Release), where NPAPI plugins will continue to work for another year.Three days ago Mozilla released the new Firefox 52, the new version of the web browser that comes with significant changes and improvements that continue to gradually shape the future of the browser. Consider this a short-term, stop gap solution. In Firefox 53, Mozilla will remove this workaround. That’s it assuming your NPAPI plugins are installed correctly they should work as before. “But there is a way to enable Java, Silverlight etc NPAPI plugins in Firefox 52 using an about:config setting. Add new Boolean string "plugin.load_flash_only" and set it to false. You can’t work with government if no Java plugin is present,” he explains. “This is important, because some websites are still using Java plug-ins, like for example our government site for signing documents.
If there’s a particular NPAPI plugin that you rely on there is (for now) a way to override Firefox defaults and re-enable NPAPI support. Renable NPAPI Plugin Support in Firefox 52 Google Chrome ditched NPAPI support back in 2014 (and the version of Flash that ships pre-bundled uses the newer PPAPI tech).īut it is in Firefox 52, with Mozilla’s first step towards total removal of the technology from its browser, that is likely to impact Linux users the most. Whatever bonuses these plugins, Flash, Silverlight and Java among them, offered have been long since outweighed by the inherent security flaws manipulated to malicious ends. This is a good move in the round as NPAPI is a terribly outdated technology (over 20 years old, in fact). Firefox 52 began its roll out yesterday, bringing a bunch of small iterative improvements to the fore.Īmong the most significant change in the release is the decision to disable support for all NPAPI plugins bar Adobe Flash by default.