Websites can request several configuration settings from your browser in order to help them printing the best page format for you.
But by requesting your browser's specific abilities (here canvas is used for graphical rendering), websites could fingerprint your browser (if you have a unique configuration) across multiple sites.
This is related to the ...
Except for reading through all of the plugin's or the extension's source code, there is unfortunately no way to make sure it is safe.
And some believed-to-be-safe extensions like AdBlock Plus will still reduce your anonymity somewhat compared to other Tor users, by creating a more unique network fingerprint ("this user is the one that doesn't download the ...
By default, Tor Browser forgets about permissions when you close it. You can easily check it by revisiting Youtube (and see if it asks for permission again).
If permissions.memory_only preference is set to false (default is true), Tor Browser stores permissions in a file named permissions.sqlite in the profile directory.
If you have this file and it's ...
The worst thing that can happen is that the add-on tries to access the internet and doesn't use Tor.
--> that will destroy your anonymity and release your real IP address!
Hopefully the worst thing will not happen, but what definitely happens is that you(r browser) will get more trackable with every additional add-on!
Here are some tests to see how unique ...
Downloading the file isn't what this warning is about. You don't need an external application to download the file.
It's about the application you use to open the file. That application isn't configured to use Tor and thus sends information from your actual IP if it opens an internet connection.
If you're sure your PDF viewer doesn't leak information about ...
"Launch application" is a misnomer. This dialog box pops up any time you click on a link to a file that Torbrowser (Firefox) doesn't know how to display on its own, regardless of whether you intend to use an external app or not; unfortunately, it pops up before Firefox gives you the chance to specify what to do with the file in question, and I think this ...
Plugins, like Flash, are supposed to be disabled because they can bypass Tor and harm your anonymity. Whenever you install or update Flash this should have no effect on any browser that is not installed and it should not affect the TorBrower, because it even seeks to prevent Flash from loading.
Since some releases of the Tor Browser Bundle 2.x the control ports for Tor relays and the Tor Browser Bundle are different. The socks port is different, too.
There should be no problems with running a Tor relay (or bridge) while using Tor Browser Bundle for browsing.
The 3.x series of Tor Browser Bundle has Vidalia replaced with Tor Launcher so there ...
This might be a dumb question, but are you actually running tor? I don't think torbutton itself does this, you need something like Torlauncher to run tor as a standalon service by itself and then you proxy your browser through it.
Edit: I should add, to simplify things you could run tor using the full tor browser bundle and then just (close the torbrowser ...
I think the easiest is to quote the wikipedia entry:
Canvas consists of a drawable region defined in HTML code with height
full set of drawing functions similar to those of other common 2D
APIs, thus allowing for dynamically generated graphics. Some
anticipated uses of canvas ...
You have to disable Torbutton.
At the top of the connection settings dialog, it indicates this: "Disable Torbutton to change these settings."
In about:addons you can disable Torbutton and TorLauncher and then quit/relaunch the browser. Then you can set your own proxy settings or none in the network connection settings.
Edit to add: If you don't use a ...
Try going to the Firefox options menu and configuring Tor as a proxy. This will mean that you have to start Tor in the background but I did it with Chrome and it worked fine.
Menu > Options > Advanced > Network > Connection > Manual Proxy Configuration:
SOCKS Host is 'localhost' or '127.0.0.1' and port is 9150.
Make sure 'Remote DNS' is ticked
This looks like a duplicate of Tor Browser Bundle Showing Error "Firefox is Already Running" on Mac. I just posted my answer there, which is that there seemed to be permission/ownership problem on the Tor installed app (because of the way it happened to get installed on my system).
(In short, if you haven't actually started Firefox elsewhere, ...
The goal of the Tor project is anonymity. Your physical location and your operating system are obscured. Unless you provide personal data you will be anonymous.
Strictly speaking, privacy is maintained by Tor's SSL support. Having an encrypted link between your browser and the server you are communicating with is what maintains your privacy.
That said, ...
https://blog.torproject.org/blog/tor-weekly-news-%E2%80%94-november-6th-2013 warns that
Using Firefox and Tor Browser Bundle at the same time is not a great idea because the two interfaces are almost identical, and it is easy to get the two browsers mixed up, even if you know what you are doing.
If you still feel it is convenient to have both browsers ...
For the transparent proxy functionality of Tor to work you also need to set Tor as your DNS server, normally by setting the DNSPort torrc option to 53 and changing your /etc/resolv.conf. See the TransPort instructions for more hints. Without altering your resolver settings, DNS requests will go out to the Internet – not only leaking DNS but also failing to ...
I came across this and think that best describes the situation
This was from https://lists.torproject.org/pipermail/tor-talk/2014-July/033969.html
As of https://superuser.com/questions/137931/can-websites-see-my-firefox-addons, there is no default API to detect addons, as there is for plugins. As stated, malicious addons can certainly decloak you, but normal, heavily-used addons should have received some vetting, so should be a bit more trustworthy.
I have not examined the addons you listed, though.
The Tor Browser Bundle is based on Firefox. The option you clicked is a Firefox feature that removes all of your add-ons and customizations, and resets everything to the default settings.
Since you can't download the TorButton and the TorLauncher add-ons, you'll have to download a fresh copy of TBB. Your homepage and shortcuts should be stored in a profile ...
THIS IS HIGHLY INFORMATIVE...
-From the Tor Blog:
"Update (August 11, 10:04 UTC): Starting from a couple of hours ago Tor
Browser users might see a notification box in their browser claiming
that Firefox is too old providing a button to get a newer one. This is
both due to a server-side code change on Mozilla's side and an
oversight by us during ...
Someone is interfering with TLS, or your browser has an old certificate pin that is no longer valid and your browser requires updating.
Tails provides mirrors, if access to the main website is blocked. You could try accessing one of the mirrors to download the ISO.
This won't work, given that Tor Browser ships with a specific default profile which it uses, and needs to use to operate properly, creating and utilising different profiles will cause issues.
Instead, have multiple installations of Tor Browser (each extracted to a distinct folder) which will provide superior isolation between identities and profiles for ...
This is not really a problem with Tor, but within Firefox. One of the certificates which Firefox uses for signing of add-ons is expired. They write about it in their bugtracking system: https://bugzilla.mozilla.org/show_bug.cgi?id=1548973
Hopefully this will fixed within the next hours.
Tor also has the entry #30388 in their bug tracker.
So basically we ...
if you use web browser you will always get such warnings, if you use linux and you know link for the file, maybe you can use wget or other methods of downloading. but I don't know if wget or other options show your IP address...