title: How to download a CRX file from the Chrome web store for a given ID?
body: <p>I'd like to download the .crx file of an extension from webstore, I use fiddler to analyze the network request when I install an extension from webstore and got it.<br>
  For example, for the extension: <a href="https://chrome.google.com/webstore/detail/bjclhonkhgkidmlkghlkiffhoikhaajg">https://chrome.google.com/webstore/detail/bjclhonkhgkidmlkghlkiffhoikhaajg</a><br>
  the download link is:  </p>
  
  <p><a href="https://clients2.googleusercontent.com/crx/download/OgAAADQ_Loe5gfVPF2OUaB35tvex-NKlmA8V4K5YlWuvLCknMH7egLLmnMoFuCZePl_idE1GMf8jZC2KbjQqyyLDoDAAxlKa5eDp-z9frOppHWtQsRU3-iGrrrrA/extension_1_7_11.crx">https://clients2.googleusercontent.com/crx/download/OgAAADQ_Loe5gfVPF2OUaB35tvex-NKlmA8V4K5YlWuvLCknMH7egLLmnMoFuCZePl_idE1GMf8jZC2KbjQqyyLDoDAAxlKa5eDp-z9frOppHWtQsRU3-iGrrrrA/extension_1_7_11.crx</a><br>
  Now I'm wondering if there is a universal method for get .crx of an extension, the problem is how did Google encryption    </p>
  
  <p><code>bjclhonkhgkidmlkghlkiffhoikhaajg</code>  </p>
  
  <p>into   </p>
  
  <p><code>OgAAADQ_Loe5gfVPF2OUaB35tvex-NKlmA8V4K5YlWuvLCknMH7egLLmnMoFuCZePl_idE1GMf8jZC2KbjQqyyLDoDAAxlKa5eDp-z9frOppHWtQsRU3-iGrrrrA</code> ?  </p>
  
  <p>any idea will be helpful.</p>