Question

I found this plugin, for Firefox, on Google and it looks like perfect to test if my site works well on all major browsers. It changes the browser’s user-agent and emulates almost all versions of all browsers on any OS, including mobile. Looks like perfect. My question is: can i trust 100% on this plugin? It really give me the same effect as if i were using other browser (ie6 for exemple)?

Answer 1

It really give me the same effect as if i were using other browser (ie6 for exemple)?

No. Changing the user-agent string does not mean you are changing the browser’s rendering engine – it just sends a different browser signature to the server. The actual rendering will always be Firefox’s, at the sites will always look as they do in Firefox.

See these questions on how to test sites in different browsers:

• Browser testing – Ideas on how to tackle it efficiently
• https://stackoverflow.com/questions/464089/simulators-emulators-for-mobile-browser-testing