微信图片是什么格式:请翻译以下，这是把IE转换到FIREFOX的办法，我看不懂

Switching from Internet Explorer to Mozilla Firefox

We are providing these instructions due to the recent disclosure of severe security exploits in Internet Explorer and the recommendation to switch to an alternative browser, such as Firefox, by the United States Computer Emergency Readiness Team (US-CERT), a division of the Department of Homeland Security.
Getting Mozilla Firefox

1. To download Firefox, go to getfirefox.com and select "Download Firefox"
2. When asked to 'Open the file' or 'Save it to your computer', select 'Open' to begin installation. If you save it to your computer, save the file to your desktop and double-click the Firefox Setup .exe file to start the install.

You can also purchase the Firefox CD and reference books from the Mozilla Store.
Switching is Easy

Firefox imports your existing settings from Internet Explorer. An import wizard will run when you first install Firefox (and is also available later through the File menu, File > Import), and it imports your Favorites, options, cookies, stored passwords, and a variety of other data. This saves you time customizing Firefox to fit your needs.
Browser Plug-ins, Add-ons, and Toolbars

Many of the plug-ins, add-ons, and toolbars that you may have installed for Internet Explorer are also available for Mozilla Firefox, including:

* Macromedia Flash Player
* Apple QuickTime
* Real Networks RealPlayer
* Windows Media Player
* Adobe Acrobat Reader
* Sun Microsystems Java Plug-in
* Google Toolbar
* Yahoo! Toolbar
* A9 Toolbar
* Ask Toolbar
* Skype Toolbar

There are also over 1,000 extensions that are available for Mozilla Firefox to extend the functionality of Firefox.
Firefox and Internet Explorer Terminology Differences
Internet Explorer Firefox
Internet Options Options
Temporary Internet Files Cache
Favorites Bookmarks
Address Bar Location Bar
Refresh Reload
Links Bar Bookmarks Toolbar
Explorer Bar Sidebar
Copy Shortcut Copy Link Location
Save Target As Save Link As
Keyboard Shortcuts

You will notice that Microsoft Internet Explorer and Firefox share many of the same shortcut keys. For a full list of shortcut keys, see the List of Firefox Keyboard Shortcuts.