[ravinder]

To make the 'Whatasapp web' option show on the latest Android version on my phone I had to do this:

1. Back up your data (Whatsapp Menu > Settings > Chat Settings > Backup conversations)

2. Go to 'App Info' for Whatsapp had to 'Clear data' (Settings > Applications > Applications Manager > Whatsapp)

3. Restart phone

4. Access whatsapp -> enter your phone number -> restore from backup

5. The 'Whatsapp Web' should appear under menu now

[achim123]

yes this works, but will reset all stats :(... i restored my titaium backup... i still missing the Web Entry in menu :(

[lpino]

Worked for me, Android 4.3 + Galaxy S3. Thanks!