HTTP Header Mangler Firefox

Reviews of HTTP Header Mangler

List of user reviews and ratings for HTTP Header Mangler
xHeader
Modify request and response headers. No ads, no malware.

Total ratings

4.22 (Rating count: 9)
Receive review notifications
Get notified when new reviews are posted so you can respond quickly.
See reviews on Firefox Add-ons Store
View and respond to reviews directly on the store page.
Visit
Upgrade to see all 12 reviews

User Reviews

Recent rating average: 4.30
All time rating average: 4.22
Upgrade to see all 12 reviews
5 star
67% (8)
4 star
25% (3)
3 star
0%
2 star
0%
1 star
8% (1)
DateAuthorRatingComment
2025-04-08 全民*****
2025-02-22 远离*****
2024-08-27 cw***** I can modify the "Accept" header in outgoing HTTP requests in Firefox 129, so it still works. It would be nice if syntax errors in the rules would be shown.
I can modify the "Accept" header in outgoing HTTP requests in Firefox 129, so it still works. It would be nice if syntax errors in the rules would be shown.
2024-07-27 Ac***** I must report this dev cuz he is too smart :)))))) i loaded simultaneous heavy sites in 0.4 seconds per total processor time like in the old times ... Beer my friend!!? I would greatly enjoy a switch-like header on a separate string dedicated to all that burdens loading websites, like java injections, scripts, tags, consent&comply&obey-and-give-me-all-you-have ... And after their site jumped in my Mangler boat to be able to switch and drop case for the second string thus leaving free my highway for just the website Think about it Nobody would know who was there or if it was as the request appeared to came from a browser ported on a cloud ... And they record solely the loss of valuable, precious d-a-t-aaa :))) and if lost then nothing happened there Only their AI bot will enrage its crawling on the cloud for a while, but to find nothing If this works then I'd be again at surfing speeds we had before the Facebook's wave of sympathy decline started
I must report this dev cuz he is too smart :)))))) i loaded simultaneous heavy sites in 0.4 seconds per total processor time like in the old times ... Beer my friend!!? I would greatly enjoy a switch-like header on a separate string dedicated to all that burdens loading websites, like java injections, scripts, tags, consent&comply&obey-and-give-me-all-you-have ... And after their site jumped in my Mangler boat to be able to switch and drop case for the second string thus leaving free my highway for just the website Think about it Nobody would know who was there or if it was as the request appeared to came from a browser ported on a cloud ... And they record solely the loss of valuable, precious d-a-t-aaa :))) and if lost then nothing happened there Only their AI bot will enrage its crawling on the cloud for a while, but to find nothing If this works then I'd be again at surfing speeds we had before the Facebook's wave of sympathy decline started
2024-04-05 Va***** The idea is great. Produces no effects on Firefox 124. I've tried to remove content-security-policy header with it.
The idea is great. Produces no effects on Firefox 124. I've tried to remove content-security-policy header with it.
2022-12-23 Ga***** Gan Jing World is a clean, curated universe and a dynamic, overlapping network of integrated platforms and services. ==> https://www.ganjing.com
Gan Jing World is a clean, curated universe and a dynamic, overlapping network of integrated platforms and services. ==> https://www.ganjing.com
2021-03-07 Br*****
2020-08-04 Fi***** Nice!, works greatly. but I would need two things: - able to put shortcut on bar to enable/disable the inserts - add check per url key basis. then we could put /api/xpto/ as url key. so it would be active only when url contains this text Example rules: example​.com;/api/xpto/ .*regexp\d+ thank you!
Nice!, works greatly. but I would need two things: - able to put shortcut on bar to enable/disable the inserts - add check per url key basis. then we could put /api/xpto/ as url key. so it would be active only when url contains this text Example rules: example​.com;/api/xpto/ .*regexp\d+ thank you!
2019-07-03 Fi***** I needed something to test security on a site. This was the only tool that was easy to use. I was able to verify that my changes actually were resent to the request object.
I needed something to test security on a site. This was the only tool that was easy to use. I was able to verify that my changes actually were resent to the request object.
2019-03-06 li***** That’s a nice tool with a friendly interface (which are so rare nowadays), but it’s worth stating clearly in the description, that it is able to modify *only request* headers. (Even better — to make it possible to modify response too, of course. ;-)
That’s a nice tool with a friendly interface (which are so rare nowadays), but it’s worth stating clearly in the description, that it is able to modify *only request* headers. (Even better — to make it possible to modify response too, of course. ;-)
Upgrade to see all 12 reviews

Best HTTP Header Mangler Alternatives

Here are some Firefox add-ons that are similar to HTTP Header Mangler: