Filter request headers
Block certain values (cookies, etc.) from http request headers.
Show my Password
a basic add-on to show all your passwords in web pages
HTML format cleaner
Right-click context-menu to clear HTML formating (remove HTML tags) and copy as plain text
IDN Safe is a browser extension which blocks internationalized domain names to prevent you from visiting probable fake sites.
Web Security Audit
Identifies common vulnerabilities in websites as you browse the web.
Keep cookies from leaving your browser.
Metis (Μῆτις) password generator
Metis (Μῆτις) password generator help you to have a unqiue password per website with a unique key.
Local pass store
A password manager with local storage, a bit like old WAND.
Workspace Crypto Extension
What is My IP Address
View your public ip address via toolbar popup.
MD5 Lock - Password Securer
Secure your passwords.
GenPass - Умный генератор паролей
GenPass - Smart password generator lets you to create a strong easy remembered password of high cracking resistance.
Automatically blocks all pages from any website that is not in your list of allowed websites.
PasswordBox - Free Password Vault
Opera上完全免費的密碼管理工具 ﹣ 從此以後再不會忘記您的密碼
PfP: Pain-free Passwords
A simple and secure password manager to be used with KeePass databases.
Encryption of personal correspondence in social networks.
Hide your real email and control who can send you messages. Generate new emails with one click is pretty easy.
Premiumize.me extension for Opera
Provides website information such as Rank, and checks URLs against suspected pages.
Pro Se reads and analyses privacy policies on your behalf. It empowers you to make informed decisions about your privacy rights.
Simple, modern, open source and secure password manager.
View dissapearing messages on PC.
Secure password aggregator.
MetaCert: Internet Security (Website Identity)
Internet security for teams, remote workers and families.
File Guard (Encryptor | Decryptor)
Encrypt or decrypt any file with just one click inside your browser!
PfP: Pain-free Passwords (legacy)
Use a single master password to generate secure passwords for all websites - without losing track of passwords you cannot change.