
Testim
Katalon
Testsigma
Selenium
BrowserStack
Cypress.io
TestMu AI (Formerly LambdaTest)
Agentic testing harness for modern development

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.

Which is more popular?
Based on our record, Modify Header Value (HTTP Headers) seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | mabl.com | mybrowseraddon.com |
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In their own words, as submitted to SaaSHub.


mabl is the independent verification layer for agentic development that delivers a verdict you can stand behind. Because the agent that writes the code can't be trusted to check it, mabl verifies it independently — authoring, running, and maintaining your tests as one system from the first commit...
No description of Modify Header Value (HTTP Headers) yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Mabl is well-suited for software development teams, QA engineers, and DevOps teams that work on web applications and require a reliable and scalable testing solution. It is ideal for businesses that have embraced cloud-based and agile development methodologies and are looking for tools that integrate seamlessly with their continuous integration and delivery pipelines.
No analysis of Modify Header Value (HTTP Headers) yet.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using mabl and Modify Header Value (HTTP Headers). For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Mabl is a next-generation automated testing tool for web applications. It uses the power of ML & AI to enable easy functional testing of a system. This SaaS service comes with native supports for Firefox, Chrome,...
Mabl is a next-generation automated script less cross-browser testing tool. It uses the power of machine learning and artificial intelligence to enable easy functional testing of applications. The only SaaS service...
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Recommendations tracked on public social media and blogs since March 2021.


Tracking mabl since Mar 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
When comparing mabl and Modify Header Value (HTTP Headers), you can also consider the following products.

Stable, self-healing, end-to-end test automation via machine learning. Testim helps accelerate the delivery of high-quality software. Speed up test-authoring and improve the stability of automated, end-to-end tests.
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Sky Live HTTP Headers is an open-source browser extension that visually displays HTTP requests and response headers from every website you visit.
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Built on the top of Selenium and Appium, Katalon Studio is a free and powerful automated testing tool for web testing, mobile testing, and API testing.
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WebSniffer is an online tool to outlook HTTP request and response headers.
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Complete AI-driven Test Automation platform for Web apps, Mobile apps and APIs. Simple English commands to automate complex tests easily and effectively with all the flexibility that enterprise teams need!
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HTTP-Repeater (HTTP/s Live Headers) (Beta) is a browser extension that lets you capture browser requests and repeat the process in a loop automatically.
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