In the second method, we will enable ActiveX by adding it as a Chrome extension. First, you’ll have to download and install the plug-in externally. Download the file here. Click on the Google Chrome menu (three horizontal or vertical lines/dots). The issue you have encountered is that Google Chrome 42 has disabled NPAPI by default, and with it, the Java plug-in (among other plug-ins). With the updated browser, when you visit web pages with Java content, you see a gray area with a puzzle piece display in its place instead.

Ok so I had the same problem as most of you with the firefx plugin not working, i put the .dll files in the plugin folder and it works fine now. but after i did so i went to the microsft site like elvandil said here:

In Safari version 12, for Mac Mojave 10.14 you will notice that the Silverlight plug-in is not available. It is, unfortunately, waiting until Microsoft provides support for Silverlight in Safari 12 until then you can best use Google Chrome and the IE tab plugin. Help other people. X-mplayer2 Plugin Chrome Download As part of the code cleanup efforts, the internal libfaad2 copy has been removed since the FFmpeg decoder is working well. Also the internal mp3lib copy is no longer used by default since the many alternatives (FFmpeg, libmpg123, libmad) avoid its recurring issues like incorrect decoding with newer compilers.

and installed the codecs for windows media player 9 on mistake. Now i just got a brand new laptop with Vista, so it has the vista windows media player 11.0.6. SO, now that these codecs are installed, no videos will play on my computer, and my AIM chat window does not display any text when chatting. My computer is too new to do a system restore, it says 'there are no restore points yet'. So i tried looking around for the recently installed codec pack and couldnt find it. Can anyone help me? i just got this thing and its already screwed up Currently supported browsers:

• Mozilla Firefox
• Internet Explorer - ensure you run the camera IP address in Compatibility Mode in IE
• Safari

Currently unsupported browsers:

• Google Chrome
• Microsoft Edge
• Some versions of Internet Explorer
• Opera

Google Chrome will very soon this month discontinue support of NPAPI plugins as their 90s-era architecture has 'become a leading cause of hangs, crashes, security incidents, and code complexity'.

Application X Mplayer2 Not Working

Unfortunately, this means that anyone trying to connect to their IP cameras, NVRs or DVRs via the updated Chrome web browser will not be able to view their live feeds until Hikvision update their firmware with an alternative plugin which they have stated as being ready by the end of October 2015 for their IP cameras and the end of November 2015 for their NVRs and DVRs.
In the meantime, please use an alternative browser such as Firefox or Internet Explorer if you experience problems.

Application/x Mplayer2 Plugin Not Supported Chrome Browser