How to Add Your CDN to YSlow
- 1). Launch Firefox.
- 2). Type "about:config" in the address bar where you normally type URLs.
- 3). Press "Enter." A warning message asks if you would like to continue. Click "I'll be careful, I promise." The Firefox configuration window will appear.
- 4). Right-click anywhere in that window to open a drop-down menu containing options. Click "New," and then click "String." The "Enter String Value" pop-up will open.
- 5). Type "extensions.yslow.cdnHostnames" (without the quotes) in the pop-up's text box, and click "OK." Another pop-up will open and prompt you to enter a value.
- 6). Enter your CDN's hostname in that pop-up's text box. For instance, if your CDN is abc_cdn.com, enter that value in the text box. If you have additional CDNs, separate them with commas in the text box as shown in this example using two CDNs:
abc_cdn.com, efg_cdn.com - 7). Click "OK" to apply the changes and restart Firefox.
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