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Compare Chrome extensions: Modify Header Value (HTTP Headers) vs Email Tracker for Gmail, Mailsuite-Mailtrack

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Stats Modify Header Value (HTTP Headers) Modify Header Value (HTTP Headers) Email Tracker for Gmail, Mailsuite-Mailtrack Email Tracker for Gmail, Mailsuite-Mailtrack
User count 40,000+ 2,000,000+
Average rating 3.38 4.44
Rating count 42 11,225
Last updated 2024-02-19 2024-04-22
Size 96.59K 1.09M
Version 0.1.9 11.79.0
Short description
Add, modify or remove a header for any request on desired domains. Gmail mail merge and mass email tracker with 2 million+ users. Free, unlimited email tracking to boost outreach and email marketing.
Full summary

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.

Mailtrack, soon to be rebranded as Mailsuite, is a personal email marketing tool with Campaigns, Mail Merge, Newsletter and document analytics for Gmail™.

Why should you use Mailtrack?

  • Free email blast service for Gmail™
  • 117,000 paying subscribers
  • 2,4 million active users
  • 8 million registered users
  • Complete security audit by Google™
  • GDPR compliant
  • Patented Technology
  • Top reviews: 4,5 stars from over 10,000 reviews
  • Personal email marketing tool: Send campaigns with Mail Merge
  • Bulk email service: Send up to 1,000 emails at the same time
  • Email automation: Create, personalize, and send/schedule email campaigns and newsletter quickly.
  • Outreach tool: analyze your outreach performance through metrics such as open rates, click-through rates, response rates, and conversion rates of your cold emails.
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