To use Android extensions, you'll need Firefox for Android. To explore Firefox for desktop add-ons, please visit our desktop site.

Log in
Add-on icon

Reviews for Chameleon

Chameleon by sereneblue

4.6 Stars out of 5
5
159
4
18
3
11
2
7
1
2
197 reviews
  • by Parl, 5 years ago
    Nice work, i love it., Please add more screen sizes, like please add 30 to 40 in this list, Please update this asap....really nice add-on...only screen sizes issue....

    Developer response

    posted 5 years ago
    Hi,

    I will be adding a few screen resolutions in the next major update. Screen spoofing will be improved to better mimic real browser profiles. There's not too many common screen resolutions that's missing. https://gs.statcounter.com/screen-resolution-stats/desktop/worldwide
  • by TPeter, 5 years ago
    Good extension. Could you add more screen sizes to next update, Also please add more windows and mac os browser versions.

    1920x1080
    2304x1440
    1366x768
    1366x768
    2560x1600
    3000x2000
    1440x900
    2880x1800
    5120x2880
    1366x768
    1280x800
    1366x768
    1920x1080
    1366x768
    2560x1700
    1920x1200
    3840x2160
    2560x1600
    2560x1440
    1921x1080
    2560x1440
    1366x768
    1440x900
    1280x800
    2560x1600
    1440x900
    1680x1050
    2880x1800
    1080x1920
    768x1280
    2160x4096
    768x1366
    1366x768
    1600x900
    1920x1080
    2560x1440
    1920x1200
    2560x1440
    2560x1600
    1920x1080
    1366x768
    2560x1440
    2160x3840
    768x1280
    4096x2304
    3840x2160
    1920x1080
    1920x1080

    Developer response

    posted 5 years ago
    Hi, sure! I'll add a few more screen sizes and browser profiles in the next major update (ETA later this month).
  • by Davide, 5 years ago
    https://whoer.net/ still shows my *real* userstring (by JavaScript) instead of the spoofed one.

    Can i fix that by toggling one of the configuration settings of Chameleon?

    Developer response

    posted 5 years ago
    Hi, make sure you enable script injection. More details can be found in the wiki: https://github.com/sereneblue/chameleon/wiki/Profile.
  • by EleanorDeveloper, 5 years ago
    Good convey of development from RAS
  • by Mark P, 5 years ago
    Works like charm. Please add option to disable pdf.js

    Developer response

    posted 5 years ago
    Hi, there isn't a way to toggle pdf.js programmatically. If you'd like to disable pdf.js, there is an about:config option you can toggle: pdfjs.disabled.
  • by YasserDivar, 5 years ago
  • by Kiwi_Crazy, 5 years ago
    If I choose Enable resist fingerprinting option, user agent tests show me Windows 10 and Firefox 68. And nothing I can change (I tried manual user agent selection, real profile, whitelisting site etc. Nothing changes). My real OS is Windows 7 x64 and Firefox 72.

    Developer response

    posted 5 years ago
    Hi, did you enable script injection? Without it, RFP will overwrite the navigator user agent. If you're still having issues, please report it here: https://github.com/sereneblue/chameleon/issues.
  • by My_Cheese_Is_Slippin', 5 years ago
    Along with the Advanced Preferences (about:config) this is better than a VPN !
    Excellent work !
    Thank you very much.

    Developer response

    posted 5 years ago
    Thanks for the kind words. I do want to note that you should be using Chameleon with a VPN. Chameleon only changes your browser fingerprint, it doesn't make you anonymous online.
  • by Firefox user 15467264, 5 years ago
  • by Jiggs, 5 years ago
    Bravo devs for being responsive after making this useful but not java disabling levels of supposed obscurity. Perfecto 7*
  • by icefox, 5 years ago
    This seems to be the complete package for browser profile spoofing. Does a lot more than just change your user agent. Some of the reviewers are pretty uneducated, let me explain that some settings in this addon HAVE to break sites by design. It's how the internet works.

    Developer response

    posted 5 years ago
    Don't forget to use Chameleon in addition to other extensions! https://github.com/sereneblue/chameleon/wiki/Recommended-Setup
  • by EmirSc, 5 years ago
  • by nic, 5 years ago
  • by Powerman, 5 years ago
    Amazing tool, I love it. A must have. The only addon that also fake javascript. But setting the about:config is not automated. Please make a tweaking tool for this.

    Developer response

    posted 5 years ago
    Thanks for the feedback! Unfortunately, changing about:config settings programmatically isn't possible with the WebExtension API. The best alternative is to reach out to Mozilla to create new APIs for specific about:config entries.
  • by DNT, 5 years ago
    Amazing extension against tracking. Needs other addons to complement it though. Very nice set of features.

    A good anti-tracking test is this tool: https://webbrowsertools.com/privacy-test/

    With other extensions installed as well aim for a score of 50/100. Then add VPN & fingerprinting protection. You are able to reach 90 and 100. Manually add those points.

    Developer response

    posted 5 years ago
    Thanks for the kind words! Some recommended extensions can be found here: https://github.com/sereneblue/chameleon/wiki/Recommended-Setup
  • by ric54321, 5 years ago
    need a redesign

    Developer response

    posted 5 years ago
    A redesign is planned for v0.20.0 (https://github.com/sereneblue/chameleon/projects/1)! ;)
  • by Firefox user 15330737, 5 years ago
    break site, some times cant solve recpatcha

    Developer response

    posted 5 years ago
    Recaptcha doesn't play nice with anything that tries to change your fingerprint. I'm not sure if there is a 'fix' but there is an issue open about this: https://github.com/sereneblue/chameleon/issues/250
  • by Firefox user 15280388, 6 years ago
  • by Ysard, 6 years ago
  • by Firefox user 15109409, 6 years ago
    Excellent little addon. LOVE the checklist, very thorough. Would like to see a little popup descriptor for each setting. Inaccurately reported session identifiers and tls fast_start setting as its opposite.

    Disable SSL False Start security.ssl.enable_false_start true
    Disable SSL Session Identifiers security.ssl.disable_session_identifiers false

    false_start is actually disabled, and session_identifiers are actually disabled... not sure whats going on here.

    Developer response

    posted 6 years ago
    Thanks for pointing this out! v0.12.13 fixes this issue.
  • by Firefox user 15191256, 6 years ago
    Suddenly it stopped display notifications to me. I need to hover on the extension to see my spoofing settings everytime i open Firefox. Before it always displayed information about OS, Screen resolution etc

    Developer response

    posted 6 years ago
    Please check if enable notifications is enabled. If it's enabled and it's still not working, please open an issue here: https://github.com/sereneblue/chameleon/issues.
  • by Firefox user 15182754, 6 years ago
    wow ! impressive, serious work. thanks.
    a lot of options, very good documentation, with guidelines and explaination for each.
    I will try it for some time and update my review if needed, but I'm pretty confident it will not be necessary :-)
    I am now allegedly browsing with chrome on an iPhone with a 1-meter-wide screen resolution, ... for the next hour, at least. priceless.
    thanks again

    Developer response

    posted 6 years ago
    Thanks for the kind words!
  • by Firefox user 15164070, 6 years ago
    Cumple con lo que promete, ademas viene con muchas características para la privacidad.
  • by David, 6 years ago
    This really works , surperb , surperb !
  • by Firefox user 15033282, 6 years ago
    Excuse me, can I open multiple Firebox browser pages and make each page have a different browser profile?

    Developer response

    posted 6 years ago
    Unfortunately, no. The closest you can get to that functionality is to use the whitelist editor and creating a rule for each site you want to have a separate profile for.