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Questions tagged [browser-plugin]

Browser-plugins allow to display content in browsers that they don't support natively. The two major APIs are NPAPI (supported by all browsers except Internet Explorer) and ActiveX (for so called content extensions for Internet Explorer).

Browser-plugins allow to display content in browsers that they don't support natively. They are usually written in C++ or C. The three major APIs for browser-plugins are:

  • W3C Web-extension is a cross-browser system for developing browser add-ons, supported by Chrome, Opera, Firefox and Edge
  • NPAPI, supported by all browsers except Internet Explorer
  • ActiveX, for so called content extensions for Internet Explorer

Specific browsers may support additional APIs, like WebKit Plugins on OSX.

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How to deploy .so browser plugin on another linux system

I developed a simple linux browser plugin using firebreath framework and it is working fine on my system i.e linux(ubuntu). When I copy the plugin binary (.so file) to another Ubuntu 64/32 bit machine it does not appear to load in the browser plugin…
user3036276
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Wait for lengthy operation without browser hang in NPAPI windowless plugin

I've written a windowless NPAPI plugin, and I am going to perform some long lasting operation (e.g.send a http post request with image data) in a plugin function called by web browser JavaScript. Web browser must wait for plugin's worker thread to…
winhow
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Using firebreath plugin on Mac

I have developed a test plugin using FireBreath on Visual Studio 2010. I could make it work on windows by registering the output dll... Now I would like to check whether this plugin works on Mac. I have no idea about this.. Do I need to create…
Pitchai P
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Are there any Audio/Sound NPAPI plugins available?

I've been searching for it for a very long time and can't seem to find any relevant items (I know about the VLC plugin and I don't think it supports sound effects for video games). I need something similar like FMOD or Bass (or an NPAPI wrapper for…
Cliffmeister
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Web app and USB communication without using NPAPI plugin

I have NPAPI browser plugin for Chrome,Firefox for a USB device. This plugin allows silver light web application to communicate with the USB device. Interaction involve 1.data transfer 2.querying USB device for info 3. and saving data in to USB…
Vikram Ranabhatt
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Close a popup browser window only if the user saves the downloaded file

We have a popup window where the user makes some selections and clicks on a button to generate a pdf file. We show a progress display (animated gif), and then eventually send the pdf contents to the user with content-disposition: inline. The user…
Bernard Chen
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Error when use vs just-in-time debugger on Firefox plugin-container.exe

Does anyone ever use vs just-in-time debugger on Firefox plugin-container.exe? I want to debug my Firefox plugin on start-up, so I try the just-in-time debugger on plugin-container.exe. I expect once the plugin-container.exe is running, it will…
Wayne Wang
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How to auto load a plugin (which i created using firebreath) when i open a file with .abc extension in browser?

I have created a plugin using firebreath its been installed in firefox but i wanted to know is it possible to load the plugin automatically when i open a file with .XXX extension ? example: you can right click on a PDF and open with browser and…
Navin
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Display a message from internet explorer 10 in Windows 7

I have a web application which needs to call a simple popup message with some text in windows (7 - for arguments sake) In this case I have access to all the users machines who will be running the web app. Is it possible to do this in windows…
jim smith
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NPAPI Plugin update doesnot work on the fly

I have browser plugin built using NPAPI Lib for Safari and firefox for Mac System.Now I have newer version plugin and I am asking user to download new plugin if user doesn't have latest plugin. after downloading the plugin it is not getting loaded…
Vikram Ranabhatt
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NPAPI plugin not getting loaded upon installing and browser plugin method call failing

I have browser plugin for Safari/Firefox on Mac.When user launch webpage it will ask user to download the plugin.Ideally it should refresh the page automatically when download is done and make use of plugin. The code is able to detect the plugin but…
Vikram Ranabhatt
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how to call gstreamer functions in NPAPI

I am going to call gstreamer functions in NPAPI plugin, but what I found is when I invoke method "gst_init" in plugin, it always failed! no matter I call it in a new thread or a child process, it can not get passed. so I'm wonder how can I call the…
darkwind
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creating NPAPI plugin to access chrome DOM details

I have written a NPAPI plugin(using Npruntime sample), I want to use this plugin to get DOM details of the current tab opened in Chrome browser. I am planning to use content script to get DOM details. Is there any other way better then this? I am…
user2094814
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How to disable npapi plugin on key press

Is it possible to disable npapi plugins on key press. For example, if I don't want the plugin to load for some mime-type which it is registered for, then just by pressing Alt key(say) it would prevent the plugin from loading, without the need of…
adnan kamili
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move npapi plugin object in webpage from one div to another, why plugin destroy and recreate?[chrome， FireFox]

I got one plugin and embeded to my webpage page, the plugin is used to play media files(.mp3,mp4,m3u8, etc).my webpage looks like:
Plugin
Plugin created like
user2638168
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