Requests to dyn.in are sent with HTTP header host set with correct www value.
Example :
- dyn.in.staging.example.com => www.staging.example.com ;
- dyn.in.sub.pp.example.com => sub.pp.example.com.
Try xHeader →
Overview
Features & Capabilities
User Growth & Download Statistics
Manifest V2 Add-on
- By:
- Firefox user 13682057
- Daily users:
- 1
- Version:
- 1.1resigned1 Last updated: 2024-04-25
- Version code:
- 5730382
- Creation date:
- 2018-02-20
- Firefox add-on GUID:
- webRequest.onBeforeSendHeaders@iomelette.fr
- Firefox add-on numeric ID:
- 939219
- Firefox on Android:
- Yes
- Risk:
- Moderate risk impact Moderate risk likelihood
- Permissions:
- <all_urls>
- webRequest
- webRequestBlocking
- <all_urls>
- Size:
- 8.41KB
- URLs:
- Website
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-09-07
- Compare stats and ranking:
- webRequest.onBeforeSendHeaders vs Inspect HTTP request headers
- webRequest.onBeforeSendHeaders vs HostHeader
- webRequest.onBeforeSendHeaders vs Request Header Modifier
For Developers
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Is webRequest.onBeforeSendHeaders Safe?
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
webRequest.onBeforeSendHeaders requires a few sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.
webRequest.onBeforeSendHeaders is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Extension Guard
Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard
Secure Your Browser Upgrade to see full risk analysis details
Best webRequest.onBeforeSendHeaders Alternatives
Here are some Firefox add-ons that are similar to webRequest.onBeforeSendHeaders:
Inspect HTTP request headers
SUNWIN
HostHeader
Katchov
Request Header Modifier
Jamie van Brunschot
Modify Headers DNR
Brawl
Custom Header Values
TBednarek
AddHeader
Firefox user 13564830
HTTP Headers Spy
xbq666
Host Header Injection
Kr Rathod
HTTP Headers
Darina Šimun
HTTP Header Mangler
Peter Nilsson
akamai-pragma-headers
Evan
Header Modifier
kidatti