As the time of writing this post, Viber didn’t release an updated version that supports Mac OS X Yosemite.
Chances are the app icon is marked with an X and you get an error message once you try to launch it.
It’s pretty easy to actually fix this issue; Just head to your Applications directory, right-click on the Viber icon then Show package contents. Navigate to the Contents folder and open Info.plist ; Note that you’d probably need a Plist file editor installed (or XCode) to edit this file. If it’s not the case, just open it with your preferred text editor – and you’ll get something like this:
Notice the highlighted lines – all you need to do is change the values 4 and 4.0.0 to, respectively, 5 and 5.0.0
Save your file. Relaunch Viber. You’re good to go!
Awesome tip, I would like to upgrade to Yosemite, just waiting for the official release!
omg, dude u really save the day. was trying so hard to search “compatible version”
Wow ! Amazing .. Thank you so much … I did it according to the tips…. It worked.
id doesnt work here :/ It says the viber is damaged and asks me to move to trash after editing
Make sure the second string is 5.0.0, not 5.1.0. I had the same problem.
it works for me . thanks much . so great !
Working fix :
In a Terminal, type
sudo xattr -d com.apple.quarantine /Applications/Viber.app
sudo xattr -dr com.apple.quarantine /Applications/Viber.appmight be a better option (r standing for recursive)
Tried the changing the value to 5 and 5.0.0 and got the “vibe is damaged…trash” message. Then run the “sudo xattr….” in terminal and voila. Works like a charm. Thanks guys!
Now it works.
Thanks so much for offering up such a simple fix. Cheers for that.
this is just too awesome the first code modification i get right
worked for me!!!
You also need to update the OSX version from 10.9 (in my case) to 10.10 just below where you update 5 and 5.0.0. It works
Wow! Love those code tricks that actually work! Makes me feel like a hacker! haha
Thank you so much. Awesome post. :)
Viber has already updated their app, if you download it today it’s gonna work with OS X Yosemite.
Thank you man. You are lifesaver!
Great & simple solution.
Thank you so much! It worked! ^_^
Didn’t work for me at first. I had “4.1.0” instead of “4.0.0”, so I tried to replace by “5.1.0” and it worked ;)
Also changed “OS 10.x” by “OS 10.10”, later in the code.
Thanks for the tip !
Great idea! Works perfect. Thanks!
not working on final yosemite !!
It should be. If it’s not the case, just download the new Viber DMG; I guess they update it.
Awesome it worked ::
Thank you very much Zak ! :-) easy way and it works
Thanks mate, it’s working!
It worked! Thank you very much! :)
you are a star. thank you so much ^_^*
Thank you, and yes, it was easy to follow your instructions and make the changes. Completed in under a minute. Well Done
Awesome. That worked. Thank you so much for sharing this :-)
Really appreciate your help, works perfectly…. thank you
Man, you are awesome :) Even Viber don’t know to do this :D
Thanks Mate!! Highly Appreciated for your effort to help us..
Keep it Up!! :)
Great, thank you!
Dude, you are simply a genius.
Thank you so much, dear !
thank you so much! such a life saver!
Thank you very much! It works again :-)
Thanks a ton…worked like a Dream…
Thanks Man :)
it was set to 3 & 3.0.0 i changed them to 4 & 4.0.0
hope this will help.
Thanks dude, it worked. Thanks a lot
awesome – thanks a lot! how in the world did you figure this out…? well done
I can’t edit it. My Info. list doesn’t look as same as yours. Pls help
It looks like this:
© 2013 Viber Media Inc.
Just head to your Applications directory, right-click on the Viber icon then Show package contents. Navigate to the Contents folder and open Versions folder. Double click on Viber.app.tar . It will create a shortcut icon. Just click on the icon and your good to go:)
You can go to the application and drag the viber option to trash. Copy and paste the icon in the application that was created from above process.
vow ! it works, just amayzing and so simple, why isn’t Viber supporting its Mac customer
Thanks. Worked great although I had a 4.2.0 version. Making it to 5.0.0 solved it.
tanks a lot
it works !
It worked thanks a lot! :)
Thank’s so much
Thanks. It works perfect!!
thank you so much
mine was saying
so i changed it to
Wow!!!..worked great…thanks a lot….
I just copied my Viber.app from the one I was using in 10.9 to a clean installed Yosemite and it seems to work fine. I have 4 and 4.3.0 on mine.
What I was searching for was how to disable one of the rouge Viber process that always freezes right after launching Viber. There’s a main Viber process and a small 2.4 MB size Viber process which goes Not-Responding in Activity Monitor right after launching Viber. I can manually kill it and it won’t do any harm, but it feels iffy to do this.
Does anyone know a fix for this? Last year, Viber Support said they are aware of this issue, and still hasn’t fixed it.
They just released an updated version as of a few hours ago. Did you check if the stale process is still there? (FYI, the same issue is with Google Chrome; my bet is on Adobe’s Flash being stupid – I guess used for animated stickers.)
I actually double-checked and sampled the process; it appears that it’s not “technically” not responding, it’s just Yosemite’s way of saying “something is happening but I ignore way”. The process is responsible apparently for some background tasks (mostly SSL encryption).
really worked thanks
it works! sweet, thanks!
MUCHAS GRACIAS… funcionó correctamente… Viber Ok
Thank for the excellent suggestion and guidance. It worked perfectly.
Thanks a lot very helpful…
I tried but it doesn’t works. could you please help me?
It does not fix my problem
It opens (as before) but quite UNEXPECTEDLY., leaving this problem detail:
Process: Viber 
Version: 5 (5.0.2)
Code Type: X86-64 (Native)
Parent Process: ??? 
Responsible: Viber 
User ID: 501
Date/Time: 2015-05-10 22:41:32.427 -0400
OS Version: Mac OS X 10.10.3 (14D136)
Report Version: 11
Anonymous UUID: E9C15D6F-713D-FDEF-4E55-E5A832D46A09
Sleep/Wake UUID: C2AC886C-C55A-4E90-9B2E-EEF08891E44B
Time Awake Since Boot: 38000 seconds
Time Since Wake: 1500 seconds
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
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