Tor Browser 4.0.1 is released

A bugfix release for the latest stable Tor Browser is available from the Tor Browser Project page and also from our distribution directory.

Most notably, Tor Browser 4.0.1 fixes a crash bug affecting many users on Windows (see: bug 13443 for the details). Furthermore, the latest stable version of Tor (0.2.5.10) is included and a bug in our updater code got fixed.

This is not a security update, and we will not be deploying update notification or automatic upgrades for all platforms for this release. We may provide automatic updates just for Windows users later in the week, but we are hesitant to do this immediately due to Bug 13594.

Here is the changelog since 4.0:

All Platforms
- Update Tor to 0.2.5.10
- Update NoScript to 2.6.9.3
  - Bug 13301: Prevent extensions incompatibility error after upgrades
  - Bug 13460: Fix MSVC compilation issue
Windows
- Bug 13443: Disable DirectShow to prevent crashes on many sites
- Bug 13091: Make app name "Tor Browser" instead of "Tor"

Tools -> Options -> General

Tools -> Options -> General -> Downloads -> Save files to... -> CRASH

Last version TBB 4 working

Last version TBB 4 working with Meek makes SUSE 13.1 auto shutdown, any change in this version for this issue?

Still does not work with

Still does not work with Trusteer Rapport!!!!

You should file a ticket

You should file a ticket with your Trusteer Rapport people about their bug.

I'm still having problems -

I'm still having problems - TOR won't open and crashes with the following:

Problem signature:
Problem Event Name: APPCRASH
Application Name: firefox.exe
Application Version: 31.2.0.0
Application Timestamp: 00000000
Fault Module Name: KERNELBASE.dll
Fault Module Version: 6.3.9600.17278
Fault Module Timestamp: 53eeb460
Exception Code: c06d007f
Exception Offset: 00012f71
OS Version: 6.3.9600.2.0.0.768.101
Locale ID: 2057
Additional Information 1: 5861
Additional Information 2: 5861822e1919d7c014bbb064c64908b2
Additional Information 3: 84a0
Additional Information 4: 84a09ea102a12ee665c500221db8c9d6

I'm at a loss on why this is happening - I'm using Windows 8.1 but it also happens on my Windows 7 system... help...

Same thing here also....! I

Same thing here also....! I am so frustrated.!!!!!

Update your Trusteer Rapport

Update your Trusteer Rapport Software, if still crashes then report it to Rapport developers https://www.trusteer.com/support/report-problem#t160n1825

I thought NoScript was

I thought NoScript was supposed to have been fixed so that you don't have to keep clicking on permissions for every subsequent sub-script.

I also run NoScript on my firefox browser, same version, and it behaves as it always has, where when I grant temporary permissions, I have to click 5-6 more times to do the same for every sub-script.

I downloaded TB 4.0.1and

I downloaded TB 4.0.1and clean installed it [i.e. not over a previous version] but Firefox refuses to open. I deleted it and went back to TB 3.6.6_en-US which is where I am posting from and it works without any problems. Any suggestions as I always try to use the most updated version.

I've never had Trusteer

I've never had Trusteer Rapport, plus the "directshow.enabled" setting is now false by default, and I can confirm that this version *still* has problems loading on Windows 7.

Roughly half the time, it works normally. The other half, it will load firefox.exe and tor.exe into memory and that's the end of it -- no browser window ever appears, and I have to manually end both processes and try again. It's utterly random whether it opens or not. It literally may not work, I kill the processes, then try again immediately and it loads normally!!! I can't figure out what causes it to load or not load. I'm also amazed that no one behind Tor has seemingly seen this behavior, while many people have reported it.

I'm using 4.0.1, but it usually takes 2 or 3 attempts to load properly, which is just... bleh.

Why is Tor 2.5.10 not

Why is Tor 2.5.10 not released as a Win32 executable? The latest available version is 2.4.23.

hello dear TOR guys :) I

hello dear TOR guys :)
I don't know! it's because of some of add-on s that I've installed or what?! my 4.1 works fine & opens webpages (right now I'm using it to make comment for you), but when I installed some add-ons, it stopped to work and starts to show the same problem that 4.0 did; acts like have no connection to the internet except it could open the TOR browser (same as 4.1) but just this, nothing more! (TOR browser shows but it cant open not a single page!)
thanks for your efforts guys, we really appreciate it.
a fan from Iran :)

Intriguing! What are your

Intriguing! What are your addons?

Drop Windows platform for

Drop Windows platform for Firefox based Tor Browser
https://trac.torproject.org/projects/tor/ticket/13654

And make it impossible for

And make it impossible for the large number of users who are stuck for one reason or another with Windows to use Tor Browser?

Running Tor Browser on

Running Tor Browser on Windows with antiviruses and similar spies is nothing more than false sense of security.

First of all, not everyone

First of all, not everyone runs intrusive antiviruses even on Windows; the "spies" are almost entirely third-party tools. This doesn't mean that Windows is safer than other OSes; it almost certainly has backdoors in it, but they have to be accessed. With that said, you can expect that Microsoft only gives those backdoors to governments and corporations it is on good relations with. It might not effect you much, but for users in countries whose governments aren't on good terms with Microsoft, they can expect they're government to have significantly more trouble monitoring them on machines running Windows. Tor isn't only a program for anonymity in the West; that's why they get government funding along with other similar programs.

Secondly, even though other OSes are open source and can have their source code reviewed that doesn't mean they can't have security bugs or even have flaws intentionally coded by agents of certain governmental or corporate organizations. The code base is just to big and complicated to expect even a detailed review to have a good chance of finding them. Heartbleed was a bug in a smaller piece of software that had a greater than normal number of eyes on it and it went unreported for a significant amount of time.

I'm not trying to say Windows is superior; simply that alternatives might be superior to Windows but they're still not perfect. You don't have perfect security on them just like you don't have perfect security on Windows. Perfect security is functionally impossible as long as you're using a computer. It's about maximizing security, and for some use cases where changing Operating Systems is impossible for a variety of reasons Tor Browser can be used to increase security on Windows.

I am going to call this

I am going to call this comment the definitive answer to the Windows debate, and suggest we end this thread here.

Tor devs have no resource to

Tor devs have no resource to support windows versions of tor software properly by design. Nobody of them using any of windows and MinGW will never support all new features that need for firefox to work, after mingw fixes old buggy features firefox begins to use new one that working only for MSVC builds. And Mozilla have no MinGW support for real. Look at TBB bugs affected by mingw, lack of feature or bug in implementation of run-time in every case.

Yeah, great suggestion...

Yeah, great suggestion... eliminate probably 90% of your user base.

Good Lord. :-p

for Security of All the Auto

for Security of All the Auto Update is great, should be explicit No interacting Update process for everyone for Best protection IF Update includes Security patches

hi I made a comment before

hi
I made a comment before on this post (not published yet) but after hours of challenge with my TOR browser, i thought maybe I should make another one. I don't really know what is the "root" of this situation but as a "non-expert" user, I can say these:
1- this problem comes after installing some add-ons and the base TOR browser works fine, even in my old XP window! :)
2- the specific add-on(s) that cause this problem, are not the problem themselves. they are not bad! they're just not working fine with new TOR! that's all! I can say this because the whole add-ons I have on my TOR are as the same as ones I have on my original Firefox and there, they're working beautifully.
3- not sure about this one, but maybe you should check this add-on out. I think (as a non-expert, again) this add-on and its functionality may lead you TOR guys to the root of this problem. https://addons.mozilla.org/en-US/firefox/addon/donottrackplus/?src=user…
thank you again for your endless efforts for us :)
a fan from Iran

why doesn't it show update

why doesn't it show update tor browser notification in tor browser 4.0 in windows version???

Most Tor user's are

Most Tor user's are criminals.
If you are worried about the NSA spying on you, it means your doing illegal activity.
Remember, if you have nothing to hide, then you should not care about the NSA or any other government agency spying on you.
I don't care about the government spying on me, because I have nothing to hide.
Tor user's must have something to hide.

Jeez. This person is

Jeez. This person is trolling us very well. I hope.

But because my sense of humor has been beaten out of me in the past years, I'll try to answer anyway:

Please check out the Internet Days talk at point 'h' on
https://www.torproject.org/docs/documentation#UpToSpeed
for some examples of why Tor is important and useful for ordinary people.

Total BS! You may have

Total BS!

You may have nothing to hide, but most people have lots to PROTECT.

If YOU have "nothing to hide", then I suggest you remove all the curtains from your windows, remove all the locks from your doors, post a big sign in your front yard listing, in detail, everything you own, and a work schedule so that everyone can know exactly when you are going to be at home, and when you are going to be away.

After all, you have nothing to hide, so you have nothing to worry about, right?

People having access to every detail of your life shouldn't threaten you if you are doing nothing wrong, right?

And we ALL know how totally good and honorable those in government are, right? They would never lie, cheat, or steal, would they? Of course not! They are BETTER than the rest of us, by far.

Surely you can trust your closest neighbors more than the complete strangers in government.

So, why don't you just post all that personal information here first, along with full name, address, and phone number, and prove you aren't a complete hypocrite?

Still missing or not

Still missing or not functioning well in Torbrowser (Mac) for three releases now, 3.6.6, 4.0, 4.0.1 :

Tools > Page Info > ...

- The "Media" tab is still missing
- Security tab, "Technical Details" is still keeping empty
- General, "Security information for this page" seems still not to give full security info like 'mother' esr Firefox does.

- "Feeds" tab is also still missing after the 3.6.5 release

The info functionality is a essential extra to monitor security.
Why did you remove this functionality and information?
Why don't you put it back like the way it is in the Firefox esr?

I agree...please restore the

I agree...please restore the "Page Info" functionality.

Did it fix Facebook

Did it fix Facebook Notifications terminating the Browser? I'm back at 3.6.6 because of this.

The dates on the TBB Linux

The dates on the TBB Linux 64 files have the wrong date on the Folders 12/31/99. Is there a reason for this

https://www.torproject.org/do

https://www.torproject.org/docs/faq#Timestamps

I recommend reading all the other faq entries too. :)

My ISP has blocked me access

My ISP has blocked me access to the Tor network, how do I continue to use Tor?
To add on that, I downloaded Tor from http://torproject.org/, I'm not sure if that was this website, or wether it was a fake Tor website.

If your ISP has blocked the

If your ISP has blocked the public Tor relays, you want pluggable transports:
https://www.torproject.org/docs/pluggable-transports

Also, http://torproject.org/ doesn't use https, so it is unclear what site you were actually going to. Your ISP could have pretended to be the site and given you whatever content they wanted. You should go to httpS://www.torproject.org/ to be more sure.

You should "HTTPS

You should "HTTPS EVERYWHERE" to your browser, it can protect you from MITM attacks (the one your isp might have used on you with http://torproject.org" here https://www.eff.org/https-everywhere

Don't forget to verify that

Don't forget to verify that you downloaded an untampered (malwared) torbrowser by verifying its signature as mentionned here https://www.torproject.org/docs/verifying-signatures.html.en

I just downloaded and

I just downloaded and installed Tor Browser 4.0.1 on Windows 8.1.
But I have problem in verifying it. I followed all the instruction in the link you posted but at the last step instead of getting "Good signature", I get
<" [unknown]>>
Why I get this message? I downloaded the file from the official site. Can you help me by posting some link on how to fix it? Thank you.

You probably forgot to

You probably forgot to download the sig? or the signing key?

@ Arma et al Tor staff

@ Arma et al

Tor staff should please keep in mind that many of us reside in areas where any upgrade from XP to other Win levels is not possible due to increased government licensing requirements for users.

Poor financial exchange rates values too prohibit even smugglers from brokering new equipment to ourselves when food, fuel and medicine take priority. Even Win7 is prohibitive and any attempt at downloading a 512Mb Linux/Ubuntu variation - at 16 kbps - soon has the authorities demanding documentations.

Please rethink how many of our activists are now being excluded from international communications as a consequence of incompatibility with your 4.0.0 and 4.0.1 TBB versions.

Thank you for your attention

I hear you. We're stuck

I hear you.

We're stuck though. Firefox has dropped support for XP, and also dropped support for their older versions that support it. There is no safe browser that we can give you.

Firefox 33.0.3 (currently

Firefox 33.0.3 (currently the latest version) runs fine on Windows XP!

Firefox is still supported

Firefox is still supported on XP:
http://www.neowin.net/news/mozilla-to-support-firefox-on-windows-xp-aft…

Firefox 33.0.3 System Requirements
Windows
Operating Systems
Windows XP SP2
Windows Server 2003 SP1
Windows Vista
Windows 7
Windows 8
https://www.mozilla.org/en-US/firefox/33.0.3/system-requirements/

Also, TBB 4.0.1 is running with no serious problems on XP.
So, I don't understand what you both are talking about.