CRX id
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Description from extension meta
Modify HTTP request headers, response headers, and redirect URLs
Image from store
Description from store
The most popular Chrome extension to modify headers and monitor page statistics simultaneously.
** What can ModHeader do?**
- Add, modify, and remove request and response headers
- Use ModHeader to set X-Forwarded-For, Authorization, Access-Control-Allow-Origin, Content-Security-Policy, and your custom headers!
- Modify cookies in request / response header
- Advanced Content-Security-Policy editor
- Redirect URL to another
- Enable header modification by URLs
- Advanced filtering by tab, tab group, or window
** Why ModHeader **
- ModHeader is fast, efficient, and light-weight. You can quickly enable/disable header modification with just 1-2 clicks.
- ModHeader provides you with many convenient features that will help you increase your development velocity with the least amount of frictions. Check out the big list the features below!
- ModHeader is free to use, with a paid option to unlock even more features.
- ModHeader works on Chrome, Firefox, Edge, and Opera.
- ModHeader is used by over 800,000+ users on Chrome Web Store!
** ModHeader features **
- Add comments to header
- One-click "undo" if you made a mistake
- Support having multiple profiles with quick switching between profiles
- Export and import profile
- Easily share your profiles with others
- Customize autocomplete names and values
- Support for dynamic variables
- Dark mode support
- Sorting headers and name, value, or comments
- Append value to existing request or response header
- Customizable profile badge
- Clone profile
- Cloud backup
...and more!!!
** What is new in 5.0.1 **
- Make more features available to free users
- Fix bugs
** What is new in 4.4.1 **
- Change buttons to use camel cases instead of upper cases
- Improve default auto-sync profile
- Add close banner ad options
** What is new in 4.4.0 **
- Enable ad-supported plan where users can get pro for allowing affiliated ads in extension. Users can opt-out of ads by selecting ... -> Opt out of ads (will revert back to having limited profiles and rules).
** What is new in 4.3.8 **
- Link to header help article on known standard headers
** What is new in 4.3.7 **
- Support iso_date and utc_date variable
** What is new in 4.3.6 **
- Suggest when advanced header editor is available
- Suggest when a response header is incorrectly entered in request header field and vice versa
- Suggest using tab domain filter, tab group filter, window filter, etc.
** What is new in 4.3.5 **
- Revise the add dialog to give more description
** What is new in 4.3.4 **
- Improve export dialog
- Support creating embedded ModHeader button
** What is new in 4.3.2 **
- Support query parameter as dynamic value
- Support matching HTTP methods in request URL filter and exclude request URL filter
** What is new in 4.3.1 **
- Make import with auto-sync available for free
- Gather feedbacks on uninstallation
** What is new in 4.3.0 **
- Allow free users access to all mods and filters, but limit number of rules to 10.
** What is new in 4.2.10 **
- Internal refactorings
** What is new in 4.2.4 **
- Fix a minor bug with time filters
** What is new in 4.2.3 **
- Fix a minor bug with tab domain filters
** What is new in 4.2.2 **
- Introduce tab domain filters
- Show pro icon next to pro features
- Disable pro items when user is no longer using Pro
** What is new in 4.1.6 **
- Allow start trial without credit card
** What is new in 4.1.5 **
- Control sharing visibility within ModHeader
** What is new in 4.1.4 **
- Make it easier to add
- Show profile picture when available
** What is new in 4.1.3 **
- Fix dark mode
** What is new in 4.1.0 **
- Update login, logout, and license checking logics
** What is new in 4.0.21 **
- Add support for advanced Content-Security-Policy modification
** What is new in 4.0.20 **
- Fix ModHeader not showing up for new users.
- Add {{ip_v4}} dynamic value
** What is new in 4.0.19 **
- Show tutorial to new users
** What is new in 4.0.18 **
- Support for simple dynamic value: {{uuid}}, {{url}}, {{url_origin}}, {{url_hostname}}, {{url_path}}, {{existing_value}}, {{timestamp}}
** What is new in 4.0.17 **
- Allow ModHeader to read from managed storage (for enterprise)
- Fix CSS not loading correctly
** What is new in 4.0.16 **
- Add regex cookie matching and ability to retain cookie value while modifying its attributes
** What is new in 4.0.15 **
- Add support for Time filter
** What is new in 4.0.14 **
- Dependency upgrades and some minor bug fixes
** What is new in 4.0.12 **
- Support auto-sync profile import: https://docs.modheader.com/profiles/auto-sync-profile
- Remove support for dynamic value as Firefox addon policy and Manifest V3 both disallow it. If you need this feature, please email [email protected] and we will try to figure out how to support your use-case.
** What is new in 4.0.10 **
- Profile search support
- Auto expand left panel on tab view
** What is new in 4.0.9 **
- Minor UI updates
** What is new in 4.0.8 **
- Support reordering profile, headers, and filters.
** What is new in 4.0.7 **
- Fix profile switching not working
** What is new in 4.0.6 **
- Add link to create login URL to quickly login to additional browser / browser profile.
** What is new in 4.0.4 **
- Fix crash due to tabs not found
- Fix ModHeader not working on older browser
** What is new in 4.0.0 **
- Support enhanced cookie modification
- Replace tab lock with tab filter, along with tab group and window filter
- Support autocomplete customization
- Dark mode support
- Keyboard commands mapping
- Give users more controls over share profile URLs
- Paid subscription required for some of the newly introduced features. Most existing features should continue to work for free users.
** Older changelogs **
https://docs.modheader.com/whats-new/version-4.x
** Permissions **
ModHeader currently requires 6 permissions:
1, "webRequest"
2, "webRequestBlocking"
3, "<all_urls>"
4, "storage"
5, "contextMenus"
6, "alarm"
"webRequest" and "webRequestBlocking" are required in order for request headers modification to work. Because ModHeader doesn't know ahead of time which website the modification should apply to, it needs to request permissions for all URLs (3). "storage" permission is needed to save settings to the cloud. "contextMenus" is used to enable quick pause/unpause by right-clicking on the icon. "alarm" is used to periodically auto-sync profiles (if auto-sync is setup).
** User guide **
https://docs.modheader.com/
** Privacy Policy **
https://modheader.com/privacy
** Automation **
For Selenium WebDriver users, please try:
https://github.com/modheader/modheader_selenium
To find ModHeader on other browsers, visit modheader.com
Latest reviews
- (2024-04-05) Mark Oberemk: Worked well enough for a while, but now injects ads and pop-up pages regularly (even on uninstall!). Removing.
- (2024-04-03) 亚楠周: a good tool obviously！really help a lot in web development
- (2024-02-26) Jan Majek: If it was focusing on doing the one job of modifying headers right, it would be 5/5, but they recently started to add silly "features" like floating button on all pages which is simply ridiculous.
- (2024-02-05) Prasanna Kumar: It is very helpful for debugging requests by changing headers.
- (2023-12-28) Apoorv Pandey: It's simple and easy to use
- (2023-12-15) Alriskhandy idris: This extensions make my life easier!.
- (2023-12-08) iBug: Except doing what it's advertised, it also adds bunches of junk AI ads. Literally everywhere, and sometimes even pop-up tabs and windows. Can't withstand this level of ad bombarding.
- (2023-12-06) Mike Hu: enabling authentication with much more convenience in local environment many profiles allowed, switching between profile is instantaneous
- (2023-11-30) Rob Sterlini: Used to be great, but now injects AI ads in every Google window and when it is un-installed. I re-installed it to review it (weird) and it showed it then too. Poor form.
- (2023-11-28) Mash Rien (Mashrien): Wonderful tool and has helped to bypass "Your browser is unsupported" blahblah bullsh!t on SEVERAL websites, inclding the infamously picky YewTube.. Though it WOULD BE LOVELY if shared profiles were easier to find, like say.. on their own website lol
- (2023-11-22) Devin Gaffney: Injecting ads into the browser and apparently does a bunch of other spying. Avoid.
- (2023-11-21) Harry Jackson: This extension is opening tabs to advertisers.
- (2023-11-21) wei yuan: 未经许可，在搜索结果页面添加 MaxAI.me 广告，请大家删除。 Without permission, MaxAI.me advertisement was added to the search results page, please everyone remove it.
- (2023-11-15) Martin Heil: Injects ads into web pages, was a great simple tool for HTTP header modification turned money hungry. Have switched to Requestly instead
- (2023-11-14) James Wragg: Injects ads to pages, calls out to product hunt, etc. etc. a useful extension turned spyware. Switched to Requestly instead.
- (2023-11-14) Stefano Pochet: Inject ads into google
- (2023-11-14) Ben Wormald: Pushes AI ads on install, on launching Chrome, and on uninstall - avoid this extension
- (2023-11-14) 高橋大輔: Google検索の画面に広告を挿入するようになった Inserting ads into Google search results
- (2023-11-12) zhenchuan huang: 会注入广告，无语了
- (2023-11-11) דור אלידן: Reported for injecting ads
- (2023-11-09) Z lincon: 未经许可，在搜索结果页面添加 MaxAI.me 广告，请大家删除。 Without permission, MaxAI.me advertisement was added to the search results page, please everyone remove it.
- (2023-11-08) Vincent Le Biannic: As other recent reviewers said this extension does really shady things nowadays. Edit : It seems that there are some fake reviews on this page now, all 5 stars with similar comments / profile pictures...
- (2023-11-07) Richard Demarest: ModHeader predominantly boosts development speed. Amazing stuff! Is the premium version worth it?
- (2023-11-07) Dennis Lizotte: Great extension for headers modification. Is there a tutorial available?
- (2023-11-06) John Smith: Injects an ad into the top of Google search results for "MaxAI". Also started opening popups for the same.
- (2023-11-06) Chi Chen: force add google ad
- (2023-11-06) James Ramirez: Clear-cut functionality.
- (2023-11-06) Andy Black: It's reliable, has ads, but aren't they manageable for a free resource?
- (2023-11-05) Gamerator Tyler Stein: Used to be good until it started advertising illegally
- (2023-11-04) Steve Taylor: ModHeader has recently removed the option to opt out of ads. Upon starting the browser, it opens an extra tab which advertises another Chrome extension. It's also injecting its own ads into Google search results. ModHeader has become malware, as is the fate of almost every moderately successful Chrome extension.
- (2023-11-04) Iven Gehrmann: Injects adds unfortunately
- (2023-11-04) AM ll: 难怪近期浏览网页时电脑会突然蓝屏重启停了这个扩展就没事了
- (2023-11-03) Sebastian P: ps you can opt out of ads By opting out of ads, you will lose all the Pro functionalities, and will have a limit of 10 rules and 3 profiles.
- (2023-11-03) Nikita Iakunin: injects ads
- (2023-11-03) David Paul: Used to be good, but now it injects adverts into search results, and periodically opens the extension page for another extension it asks you to install. ModHeaders extension should really be banned from the Chrome web store for violating web store policies. Also, the extension says it collects personal information and location data - does it really need to?
- (2023-11-03) Clarence Romano: Switching profiles is seamless, perhaps the profile limit could be increased.
- (2023-11-02) William Jeffers: 实用的Chrome插件，推荐使用。
- (2023-11-02) George Seys: A lifesaver for any developer indeed! Could use a simpler UI, maybe?
- (2023-11-01) Ryan Hollis: This injects ads into your google search results. Deleting.
- (2023-11-01) darryl white: Redirects me to another garbage extension
- (2023-11-01) Hwani S: ad
- (2023-11-01) W LXY: 1. Insert ads in Google search pages. maybe more. 2. popup ads in first open chrome
- (2023-10-31) Andrew Crichton: Injects ads into google search results, and doesn't make it clear that the ads come from the extension. Pretty sure it's violating Google chrome store extensions policies Ads 4, 8.1, 8.2.
- (2023-10-31) Ryan Stille: Used to be great, but now it injects ads. It opens a new browser window to some AI site. Chrome extensions are dangerous, Google should fix this.
- (2023-10-31) Niels Lohmann: Started injecting AI based ads into google search and opening tabs to install other extensions.
- (2023-10-31) Liu Yicen: 没找到所谓的关闭广告选项 https://modheader.com/articles/ad-supported-plan
- (2023-10-31) Scott Hernandez: 重定向URL功能能满足我对插件的基本的需求。
- (2023-10-31) Emil Björklund: Bait-and-switch to an "ad-supported" model in a point release without informing. Injects stuff into search-results, auto-opens tabs and who knows what else.
- (2023-10-31) Jose Lindblom: Intuitively crafted.
- (2023-10-30) Kevin Matzen: Injects ads for other extensions into google search results.