Ways to get list of extensions in Firefox, Safari, Google Chrome or Opera?

I have small idea to add social to extensions galleries (show suggest via Facebook friends), but I never develop any extensions, so I want to ask professionals.

Do 开发者_StackOverflowyour know ways to get list of extensions in Firefox, Safari, Google Chrome or Opera?

Opera has no such feature. We are concerned that the list of extensions is private information the user may not want exposed, and we are unsure if it might have security implications to share this information, so it's not likely to happen.

• Firefox: https://addons.mozilla.org/en-US/firefox/addon/extension-list-dumper/
• Safari: ~/Library/Safari/Extensions/Extensions.plist
• Chrome: chrome://extensions/
• Opera: Ctrl+Shift+E

Chrome: Use chrome management APIs Chrome Management

chrome.management.getAll(function callback)

Firefox: Use AddonManager APIs AddonManager

AddonManager.getAllAddons(function(addons)

In Firefox, you can use MR Tech Toolkit to do that.