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[tor-bugs] #12682 [Firefox Patch Issues]: Tor Browser's HTML5 canvas fingerprinting dialogue could use a "Revoke" button
#12682: Tor Browser's HTML5 canvas fingerprinting dialogue could use a "Revoke"
button
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Reporter: isis | Owner: mikeperry
Type: enhancement | Status: new
Priority: normal | Milestone:
Component: Firefox Patch Issues | Version:
Keywords: tbb-usability,tbb-linkabillity | Actual Points:
Parent ID: | Points:
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Currently when a website tries to access an HTML5 canvas, Tor Browser
displays a little XUL dialogue near the URL bar which asks if you would
like to give permission for that site to access the canvas. The options
are "Allow in the Future", "Never Allow", and "Not Now". To see an
example, just go [https://github.com/isislovecruft look at someone's
Github profile] or [https://pad.riseup.net/p/Lb57JrCmVzBt view one of
Riseup's Etherpads].
The problem is that after users pick one of these choices, the permission
is stored via the `NSIPermissionsManager` and is only accessible to an end
user by going to `about:permissions`. There really should be an easier way
to access this, and at the very least, users should be able to easily
revoke permissions later.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12682>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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