Best Modify Header Value (HTTP Headers) Alternatives in 2026
Modify Header Value (HTTP Headers) is a strong option, but it is not the right fit for everyone. Below are 0 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About Modify Header Value (HTTP Headers)
Modify Header Value (HTTP Headers) is an extension that can add, modify or remove an HTTP-request-header for all requests on a desired website or URL. This Addon is very useful if you are an App developer, website designer, or if you want to test a particular header for a request on a website. Key features: 1. Easily add, modify or remove a header for any request on desired domains. 2. For a complete list of HTTP headers, please take a look at the list of all HTTP Header Fields on the Wikipedia page (https://en.wikipedia.org/wiki/List_of_HTTP_header_fields). 3. Clicking on the Toolbar icon opens a UI to quickly switch the Addon ON or OFF, or open the options page. 4. Each header item has several options to adjust (see add-on's Options page for details) 5. You can add several header items and active or inactive them separately. 6. An example in the options page shows a tutorial on "How to add a custom header". Note: to report bugs, please visit addon's homepage (https://mybrowseraddon.com/modify-header-value.html) and fill out the bug report form.
Comparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| Modify Header Value (HTTP Headers) (original) | 3.3 | 40K+ | Free | Add, modify or remove a header for any request on desired domains. |
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Frequently asked questions
What is the best alternative to Modify Header Value (HTTP Headers)?
Browse the directory category for comparable options.
Is there a free alternative to Modify Header Value (HTTP Headers)?
Most options in this category are freemium, with a usable free tier for evaluation.