Bewertet mit 5 von 5 Sternen

Thank you for this extension, dbyrne. It's very well designed, and GPL is icing on the cake. Thanks for the time you put into this project. We appreciate it!

Bewertet mit 5 von 5 Sternen

A fantastic addon with a large number of options. I find it to be an indispensable tool on the web today. Keep up the great work.

Finally, protection against browser fingerprinting! Bewertet mit 5 von 5 Sternen

Thanks, works great! I unchecked "Disable plugin name enumeration", and set FF's about:config variable "plugins.enumerable_names" to "Shockwave,Flash,Java,Silverlight" so these plugins work, though that means changing this variable back to "*" to use any of my less common plugins.

Bewertet mit 5 von 5 Sternen

Great add on, lots of functionality! spoof not only user agent but also x-forwarded -for headers, etcetera

Mozilla android Bewertet mit 4 von 5 Sternen

How to install extension to the Mozilla on the Adnroid?
I've message "this extension is not compatible with Mozilla 38.0.5" every time.

Not compatible with Android

Hello LeonidKotv . RAS currenctly uses addon SDK modules that are not supported in the firefox for android version so it will not work. The code is free as it freedom so anyone could port it if they desire. I do not have the time to do it unfortunately.

Thanks for rating RAS

Bewertet mit 5 von 5 Sternen

This is so great, I needed built in headers of some mobile devices, i struggled hard to figure it out and couldnt, i downloaded this addon and it came with headers predefined! So great! So easy to switch!

Can you make this work for Firefox OS? I needed spoof the desktop headers from it.

Thanks for the review :)

Hi Noitidart. If the desktop SDK is compatible with FFOS then it should be possible. I'll have to look into it and get back to you

Bewertet mit 4 von 5 Sternen

Why no change to System Fonts in panopticlick. The two glaring identifiers in Panopticlick are plugins and system fonts. RAS handles plugins, user agent, and an untold number of other things. Its suspicious to me it leaves system fonts completely unchanged. (The font option in RAS does not affect it). Why no check for a list of system fonts going back in the request in a header, query, or post parameter and adding random fonts to it. (Guess I will do it myself.)

Thanks for your review Bill

The current font option is limited in that it toggles document fonts. It should limit the number of fonts available to site to 3. If you are seeing more fonts after enabling that option then it could be flash if you have it installed. I can try to help you if you open an issue on github for it.

As for improving font limiting I'm looking into it. Ideally we need this issue to be implemented

Really thanks! Bewertet mit 5 von 5 Sternen

Hi Dillbyrne ,
Really thanks for your contributions.I have been using RAS for quite a while and it is really good.
Normally I use it for CPA offers testing.
By the way , I'd like to know if it is possible to buy a private version for my own specific purpose.
My skype:newyorkheart2000.
I hope you can add my skype and let's have a chat.


Hello laozhang, Thank you for your review

I do not use skype but you can contact me using jabber and OTR . Details are at

Bewertet mit 5 von 5 Sternen

I love RAS! I've been using it for a long time now and it works wonders. I love the new look and the new options. I'm excited to see how RAS progresses in the future


Hello nciz Thank you for your review. I'm glad you like it

Bewertet mit 5 von 5 Sternen

RAS has so much packed all under one roof. Like others reviewers, I tried similar addons and they all fell short. RAS just keeps on improving with each release. I recommend all users who like it to try the github version. It has much more features.

5 stars from me. Thank you for this awesome addon, it won me back over to firefox.

Thank you

Hi Baptumba. Thank you for your rating and your support. I released a new version yesterday on github. A limited version for AMO is being worked on and will be available soon.

Bewertet mit 5 von 5 Sternen

This addon not only spoofs the user agent but also the matching headers and it has tons of other features. Keep up the good work.

Thank you

Hello Cnuxi Thanks for the review

Bewertet mit 5 von 5 Sternen

RAS is the best at what it does. I wasted my time with similar addons until I found RAS. Thank you for this awesome addon. I can't wait for the next release


Hello Katsumo. Thank you for your review. was released yesterday on github, A limited version is being worked on for AMO and will be available soon

Bewertet mit 5 von 5 Sternen

5 stars! One of my must have addons.

Hello Doonji Thanks for rating RAS

Bewertet mit 3 von 5 Sternen

Some features DOES NOT WORK!
Including "Time Zone Spoofing" "Signature" (REAL BROWSER!)
Check with this:

Forget about as the most important "source of information"!
And probably there are many other 'tools'.

Hello deNn

First of all I already have an issue open for the browser signature at . I have tried to manually re-order the headers before sending but it does not seem to make a difference. That may need a patch to the firefox code itself.

Browserspy is not the most important source, I use that for gathering profile information as it has what I need for a profile in one place, rather than send users to 3 or four different websites.

Thanks for reporting the time issue. I will try to have a fix for it soon.

Please report bugs to github in future as it better suited to deal with them.


Bewertet mit 5 von 5 Sternen

Brilliant and vital add-on if you are concerned with privacy, I am using the github version alongside a few other privacy add-ons and its fantastic. Thankyou.

Thank you for your review

Hello Migz. Thank you for your review. I appreciate it

Bewertet mit 5 von 5 Sternen

great add-on for everyone who is concerned about only privacy.

Thank you

Thanks for the review Anonymous

ITS AMAZING ADDONS> Bewertet mit 5 von 5 Sternen

wow i use addon for made you..
its amazing
iam want switch otomatocly and randomIP

how to make??
and HOW to option MOBILE ONLY RANDOM????

Thanks for your review

Hello dedy. The code for the random mobile option is already done and it will be available in the next version.

This addon does not deal with spoofing you IP address You will have to use some other software for that

Very Good Addon Bewertet mit 5 von 5 Sternen

Really Good Addon, works perfectly since i wrote my last review.
But i have been noticing one problem of late. If i change my user agent to maxthon youtube search results are missing images
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML like Gecko) Maxthon/ Chrome/30.0.1551.0 Safari/537.36"

Just see for example:

Though for older maxthon versions there is no such problem

Dieser Benutzer hat eine ältere Bewertung zu diesem Add-on.

Hello a a

The next version has tons of changes , one of which being more up to date profiles. There is no maxthon profiles in the new version. It will be released soon

Thanks for your review

Importing and exporting User agents? Bewertet mit 5 von 5 Sternen

This is an awesome plugin and I'm loving every part of it. I have one question, Can we able to import user agents xmi file on our own?

Thanks in advance!

Hello wow99

I have not added that functionality yet but it is planned in the future.

Thanks for your review

Interesting idea - thank you! Bewertet mit 4 von 5 Sternen

It's an interesting idea and seems to work so far in Firefox 31, in very limited testing. Thanks so much for thinking of this and doing it.

A few bugs and suggestions:

* Most of the user agents used by RAS are very rare, such as Epiphany 2.3 on OpenBSD. With that user agent, my browser is easy to uniquely identify, without the use of any additional characteristics. It would be useful if the RAS user could easily narrow the user agents to those currently in wide use. (I know RAS will change the UA, which definitely reduces exposure to this problem.)

* The list of user agents is outdated. For example, on Windows Chrome UAs are 1-3 years old (RAS uses versions 18-33; Chrome's current version is 40), and Firefox UAs are similarly outdated. Again, using obsolete and therefore less common UAs makes users easier to identify than if current UAs are used.

* Unchecking all those boxes one at a time to exclude UAs (e.g., I didn't want any Unix UAs) is slow. An interface to make it quicker would be appreciated.

Thank you for you review. An update to the AMO version is planned soon

Hello guanxi

This version is out of date. The github version has more up to date profiles and more options. Many of the old profiles were removed from the addon. I will add what I can from the github version into an updated limited amo version once I finish the current milestone for

The Github version also has a random option for each platform so you can limit it to Random Window's browsers only for example.