Modify Header Value (HTTP Headers)

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Add, modify or remove a header for any request on desired domains.

Latest reviews

• (2023-09-13) Arnie97: the URL filter works well, and the UI is easy to understand
• (2023-05-08) w4tchdoge: Perfectly acceptable application for my use case, works even faster than Requestly from what I've noticed
• (2022-12-07) Marcos Roehe: Worked for me!
• (2022-11-16) James Moberg: I was comparing this with Requestly and liked that it was free, but it doesn't seem to be completely compatible with HTTP/2 protocol. No JS/CSS resources would load from an IIS website I was working on and I kept seeing a "net::ERR_HTTP2_PROTOCOL_ERROR" logged. I disabled this extension and the issue was immediately resolved. I can't use this if it's going to randomly cause errors by preventing Chrome from consistently loading resources.
• (2022-09-08) Gernot Goetz: Seems to work only with GET requests. I lost several hours searching a bug, before I found out, that the header of POST requests are not modified by this plugin.
• (2022-08-05) Sebastien Hideux: Fonctionne bien sur Firefox, mais ne marche pas sur Brave.
• (2022-06-08) Bruno Magalhães: No backup option...
• (2022-05-23) Михаил Рожко: Everything worked fine, but now it stopped working correctly, sets the title only for the html page, other resources are now unchanged, which is extremely bad :c
• (2022-04-07) Wout Rikkerink: It stopped working after the latest update
• (2022-01-11) Massimo Romano: Useful specific domain selection
• (2021-11-11) Sekaijin世界人: Ne fonctionne simplement pas totalement incapable de modifier un header de réponse
• (2021-05-05) Chaitanya Thengdi: Doesn't work sometimes. At random intervals, this extension stops doing the one thing it's designed to do: inject headers in browser requests. There is really no consistency to this, I had to simply disable the extension and use another. Since this one has URL filtering(and the other one doesn't) I'm still leaving this as installed. Otherwise, there's no real reason for me to keep this. Consistency is vital.
• (2021-02-15) 90 دقيقة: Not a very friendly UI yeah but it really does work, nice job!
• (2021-02-02) ImGet: I just love it.
• (2020-11-29) M C: This extension does appear to work as advertised but there's a lot of room for improvement in the GUI and instructions. For example, the instructions explain what each column does by assigning them a number and saying, "Column 1 does this, Column 2 does that," etc, but the columns in the actual GUI aren't numbered. They are NAMED. So when you read "Column 9 does so and so," you can't just look down and find "Column 9" because there is no such label. You have to sit there and count the columns up to 9 to see which one they are referencing. Another problem (which could be user error) is that the 'Sub' checkbox doesn't appear to work properly. The instructions state that if 'Sub' is NOT checked, "the header will be applied to the exact URL(s) matching the given URL." However, I have yet to find a configuration in which checking the 'Sub' box activates the rule. The rules only work when 'Sub' is unchecked. According to the instructions, if I leave it unchecked, the changes should only apply to the EXACT URL entered. To reproduce the problem, create a rule with the following values: URL: https://www.whatismybrowser.com/detect/what-http-headers-is-my-browser-sending Domain: <checked or unchecked> (value doesn't appear to matter) Sub: <checked> Header Name: User-Agent Add: <checked> Modify: <unchecked> Remove: <unchecked> Header Value: Test 123 State: ACTIVE Now browse to the URL listed in the rule and view the displayed "USER-AGENT" header value. Note that the User-Agent does NOT display "Test 123." Now go back to the rule and uncheck the "Sub" box and then reload the test page. Note that the User-Agent now displays "Test 123." Since I specified the EXACT URL and then visited that exact URL, I would expect the User-Agent to display "Test 123" both when 'Sub' is unchecked and when it is checked. This means I have yet to be able to create a rule that applies only to a specific URL and not the entire site.
• (2020-10-24) Michael Geraghty: OMG THANK YOU THIS WORKS AMAZING. ITS SO EASY TO USE. ONCE YOU HAVE EVERYTHING SETUP ITS LITERALLY ONE CLICK!! :) 10/10
• (2020-03-18) Mihai Mocanu: Not working properly for existing headers
• (2020-02-17) xueshi: Worked well for me, and it allows me to control configuration by URL, it's very useful to me. Thanks!
• (2019-08-30) sam mabaquiao: totally helps me. it didn't work when I upgraded my chrome to version 76, until reverted back to chrome 75
• (2019-07-19) Stine Petersen: Worked well for what i wanted to use it for, simple and useful
• (2019-02-28) Doesn't modify existing http header item.
• (2018-05-31) Leo Keuken: lacks proper guidance on how to use it.
• (2018-04-26) Alberto: It works. Perfect tool for testing SSO configurations. The interface is a little weird but it works great. Time saver.
• (2018-04-04) Jonathan Baggaley: Just couldn't get it to work for me as I wanted & the ux not great :-(
• (2017-12-16) Paul Stanley: Confusing ugly UI, but it does work. I needed a way to add an Authorization header for a specific URL. For that purpose, this works perfectly.
• (2017-11-16) Michael Enke: Modify "Accept" header doesn't work. Settings: "*" "Accept" "application/json,text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8" It also doesn't print to console. Chrome 62.0
• (2017-10-19) Does not work. "Modify Headers" is better. I like the idea of modifying headers by URL but this just doesn't work.
• (2017-09-15) Vojtěch Semecký: Předpotopní
• (2017-08-25) Roger Enriquez: Reliable and straightforward. Really needs edit abilities.
• (2017-04-14) Brian Prince: URL filter - nice! 5 stars just for that.
• (2017-02-01) Jejeesh Malugu Prasadrao: Works perfectly
• (2017-01-24) xiaojie liu: very cool
• (2016-08-26) Manivannan R: This is the only Modify header addon i found which has URL filters options. UI is not Attractive but it serves the purpose & clear guidlines