xpcom

Can a firefox XPCOM component read and write page content across multiple pages? Scenario: A bunch of local HTML and javascript files. A "Main.html" file opens a window "pluginWindow", and creates a plugin using: netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect'); var obj = Components.classes[cid].createInstance(); plugin = obj.QueryInterface(Components.interfaces.IPlugin); plugin.addObserver(handleEvent); The plugin that has 3 methods. IPlugin.Read - Read data from plugin IPlugin.Write - Write data to the plugin IPlugin.addObserver - Add a callback handler for reading.

WRT building a Firefox Add-on. Is it possible to get the element under the mouse via some XPCOM or javascript method? (non-js-ctypes please as that requires OS specificity) I want to detect what is under the mouse when user presses Ctrl + Shift + M . Right now I'm adding a mouseover listener to the document when the user presses this hotkey, so I can get the element under the mouse when he moves it, but not the element that was under the mouse exactly when he pressed the hotkey combination. I just looked through the source for code that gets (or stores and makes available) the cursor position.

Is it possible to use a .dll made with Firebreath in a Firefox extension? Currently, I am trying to port an extension I made for Google Chrome that uses javascript to get the HTML of the document, and then calls a function from the .dll and passes the HTML of the document as a parameter. The .dll then saves the file and launches a program. Is there a simple way to port this functionality over to Firefox? Or will I have to rewrite the code using XPCOM? Wladimir Palant XPCOM is too complicated for simple things which is why Firefox 4 and above has js-ctypes (see https://developer.mozilla.org/en

How do you disable the default action for .torrent files/content-type application/x-bittorrent(eg open with dialog or run program) and instead handle the data in a extension? Based on @nmaiers post this is how you do it: This is how you do it IF the mime type already exists. If it doesn't exist I don't know how to add it, probably some register function. For some reason the type for my torrent s is application/x-download I have no idea why. If you want info on how I figured that out than I'll tell you. So in the example below I use that as file type. When we console.log(wrappedHandlerInfo) we

I am building an add-on for an application. The clients are paying to view some webpages and download some files out of it. They want to automate this downloading process by add-on. So instead of selecting "Save Page as" and waiting for the download's completion, they can click the add-on and forget the process. The problem is, the webpage is providing some cookies to the browser. So the best way is File-> "Save Page As" . I want to do it through the add-on. Is there any firefox-javascript way for this?. I used nsiDownloader. But it saves only html, not the pictures,etc. Can anybody guide me