Reviews for CanvasBlocker
CanvasBlocker by kkapsner
Review by surrealisme
Rated 5 out of 5
by surrealisme, 5 years agoHello, interested in the check mark "Share persistent randomness between domains", if you remove it, I realized that each domain will have different data, if you turn it on, a warning that there will be a leak, the question arose, what can domain x request from domain y? and what result will it get if this checkbox is disabled and the request is received
Developer response
posted 5 years agoYou can read the background of this flag in https://github.com/kkapsner/CanvasBlocker/issues/290
To be short: this flag makes you 100% unique and trackable across all domains. The use case for this was not to prevent fingerprinting but to disguise. Not quite the main focus of CanvasBlocker but it seemed useful for some folks.
In general I highly discourage you to from using this flag unless you clearly understand it and it suits your need. If you use it you have to reset your persistent random number generator quite frequently.
PS: domain x cannot request any additional data from domain y but the faking will add the same "randomness" to the API readouts and this information can be used to be tracked.
To be short: this flag makes you 100% unique and trackable across all domains. The use case for this was not to prevent fingerprinting but to disguise. Not quite the main focus of CanvasBlocker but it seemed useful for some folks.
In general I highly discourage you to from using this flag unless you clearly understand it and it suits your need. If you use it you have to reset your persistent random number generator quite frequently.
PS: domain x cannot request any additional data from domain y but the faking will add the same "randomness" to the API readouts and this information can be used to be tracked.
414 reviews
- Rated 5 out of 5by FFReviewAccount, 3 days agoHelps stop sites and corporations from tracking your internet activity. It works with no issues.
- Rated 1 out of 5by igorlogius, 3 days ago
Developer response
posted 5 days agoPlease check if the solution in https://github.com/kkapsner/CanvasBlocker/issues/734#issuecomment-2549927939 solves your problem. If not please comment on this issue with your CanvasBlocker settings so I can investigate.- Rated 5 out of 5by RazorCMV, 22 days ago
- Rated 5 out of 5by Firefox user 12097049, a month ago
- Rated 5 out of 5by Szaboo Ferenc, 2 months ago
- Rated 5 out of 5by Jonah, 3 months ago
- Rated 5 out of 5by Firefox user 18602700, 3 months ago
- Rated 4 out of 5by celever.boy, 3 months agoon canvasblocker.kkapsner.de/test/test.html this add-on change everythings except "offscreen Worker Test" the value always same after refresh and causes they still track you. i hope developer fix it
Developer response
posted 5 days agoUnfortunately the workers do not offer an API to interact with them from a web extension. That's why I opened https://bugzilla.mozilla.org/show_bug.cgi?id=1636977.
So I do not see a maintainable way to handle this issue. (The only would be to disable workers...) - Rated 5 out of 5by Firefox user 18605300, 3 months ago
- Rated 4 out of 5by zeblur, 3 months ago
- Rated 5 out of 5by Shefour, 4 months ago
- Rated 5 out of 5by Aaaa, 4 months ago
- Rated 5 out of 5by Firefox user 18555038, 4 months ago
- Rated 4 out of 5by Andre Bell, 4 months agoDamages Linkedin, as other comments here and on github have noted. Enable 'Advanced' settings and add Linkedin.com to the whitelist and all is well again. Do NOT alter any other settings unless you want your browser vulnerable to the noted exploit mentioned in the FAQ.
- Rated 5 out of 5by Rint Fint, 5 months ago
- Rated 2 out of 5by TELLALL4ALL, 5 months ago8-31-24: slows down and blocks some pages from loading-alerts from browser that CB is fucking up your connection
produces frequent error" canvas blocker is slowing down your browser, stop it?"
browser and or webpage issues warning that this extension is slowing down your browser do you want to stop it? - Rated 4 out of 5by newmomizi (JP), 5 months agoウェブサイトが全く正常に動作しないことはほとんどありませんが、一部のウェブサイトでは非常に動作が遅くなることがあります。
性能の低いコンピュータでこれを使用するのはおすすめしません。 - Rated 5 out of 5by Moejoe, 5 months agoUnderrated extension, everyone who values privacy should use it.
- Rated 5 out of 5by Firefox user 13194197, 6 months ago
- Rated 5 out of 5by Krisna S. Putra, 6 months ago
- Rated 5 out of 5by ColorNewb, 6 months ago