Hacking một phần mở rộng, cũ hay mới, là tương đối dễ dàng, tất cả các bạn thực sự cần là một chương trình nén phù hợp để quản lý các tập tin ZIP và các văn bản một trình soạn thảo tốt. Mặc dù phần mở rộng tập tin. Xpi, phần mở rộng thực sự chỉ là một tập tin ZIP chuẩn. Vì vậy, bạn có thể dễ dàng mở hoặc trích xuất nội dung sử dụng bất kỳ chương trình nén thông thường. Hacking một phần mở rộng, cũ hay mới, là tương đối dễ dàng, tất cả các. | 42 Part I Basic Hacking 9 66 9CC8F-B3 88-42FE-86F4-CB5E7F5A8BDC . Now all you have to do is find the directory corresponding to that GUID in the extensions directory to find the supporting files for my extension. To create a GUID for your own testing or development visit http .net webservices . Figure 3-7 Firefox s extension directory When you add a new extension or theme a temporary copy is placed in the temp folder under the extension directory. When you restart the extension is installed or reinstalled in its prospective directory. Hacking Older Extensions Hacking an extension old or new is relatively easy all you really need is a decent compression program that handles ZIP files and a decent text editor. Despite the file extension of .xpi an extension is really just a standard ZIP file. So you can easily open or extract the contents using any common compression program. Chapter 3 Hacking Extensions 43 Changing Supported Version Number You might come across an extension that you believe will work well with the latest release of Firefox but just has not been updated to include the versioning in the file embedded within the XPI. That is when you whip out your compression tools. My preference on Windows systems is 7-Zip. Using 7-Zip to update an extension s supported Firefox version numbers is a breeze but first let s configure it properly to make it easier to use. You can download 7-Zip at http . To configure 7-Zip for easy access to all archives just make sure you have Shell Integration enabled by following these steps 1. Open the 7-Zip Manager program. 2. Select Tools Options. 3. Click on the Plugins tab. 4. Click on the Options tab see Figure 3-8 . 5. Make sure that the Integrate 7-Zip to shell context menu is enabled. Figure 3-8 7-Zip Plugin options configuration window Optionally you can also have it as a Cascaded context menu so you don t clutter up your rightclick menu with too many .
