
Sky Live HTTP Headers
WebSniffer
HTTP-Repeater (HTTP/s Live Headers) (Beta)
HTTP Header Analyzer
HTTP-TRACKER
Requestly
HTTP Header Spy
Modify Header Value (HTTP Headers) is a browser extension that allows you to add, modify or remove a header for any request to your preferred domains.

Mockuuups Studio
Smartmockups
Mediamodifier
Canva
Dimmy.Club
Magic Mockups
Mockups Design
Generate realistic product shots in seconds
Which is more popular?
Based on our record, Placeit seems to be a lot more popular than Modify Header Value (HTTP Headers). While we know about 46 links to Placeit, we've tracked only 4 mentions of Modify Header Value (HTTP Headers).
Website, pricing, platforms and company facts side by side.
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| Website | mybrowseraddon.com | placeit.net |
| Pricing | — | |
| Company | — | Startup from Mexico |
| Listed in |
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With nearly 3000 mockup templates, Placeit has it all. iPhones, Samsungs, desktops, laptops, tablets, you name it, they've got it, and in nearly every position imaginable!
Recommendations tracked on public social media and blogs since March 2021.


Yep that started recently. I found a solution with the add-on Modify Header Value (HTTP Headers) , you need to add two rules:. Source: over 3 years ago
Going off of what a user said in the comments of another post complaining about this, you can get the old behaviour back by modifying the request headings. I've managed to do this using a Chrome extensions called Modify Header Value... Source: over 3 years ago
To change user agent on fenix (nighlty ,using custom collection )I use https://mybrowseraddon.com/modify-header-value.html It can also modify other header parameters . Source: over 4 years ago
Placeit: Offers mockups and templates that can be tailored to specific locations. - Source: dev.to / about 2 years ago
Placeit.net - This is probably the best one on mock-up generation imo. It has many many real-life mock-ups to choose from. (One of my favorites). Source: over 3 years ago
It's mockup, you can use mockup generator like placeit.net and many others. Source: over 3 years ago
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