This Firefox add-on lets you change HTTP request headers effortlessly.
What's great about this software is that it lets you spoof mobile requests by adding headers like x-up-calling-line-id to trick servers into thinking you're accessing from a mobile device. This can be immensely useful if you want to access content that's only available on mobile devices.
Another thing I love about Modify Headers is the fact that it's highly customizable. You can modify as many headers as you want, and play around with different filters until you get the exact results you're looking for. The software even includes a help tab, which is perfect for people who may be new to the world of HTTP request headers.
Now, some people might be inclined to think that modifying user-agent is a tricky or complicated process, but thankfully, that's far from the truth with Modify Headers. Using this software is actually quite simple, and I've never had any issues adding, modifying, or removing headers.
Overall, I'd strongly recommend Modify Headers for anyone who wants to customize their HTTP request headers to improve their browsing experience, spoof mobile requests, or perform other advanced actions. Give it a try – I don't think you'll be disappointed!
Version 0.6.6: N/A