拡張機能
HTML format cleaner
Right-click context-menu to clear HTML formating (remove HTML tags) and copy as plain text
Web Security Audit
Identifies common vulnerabilities in websites as you browse the web.
NoRef
Removes HTTP referer header
My Own Passphrase
The easiest passphrase generator for your cybersecurity needings.
PasswordBox - Free Password Vault
Opera 用無料パスワード管理アプリ – もう二度とパスワードを忘れることはありません
Link Revealer
See the true URL for all links and improve your security!
MetaCert: Internet Security (Website Identity)
Internet security for teams, remote workers and families.
Premiumize.me
Premiumize.me extension for Opera
PunyCode Domain Detection
This extension attempts to detect PunyCode domain phishing attack
SBCZ PKI Service Component
Component providing electronic signature of the document.
File Guard (Encryptor | Decryptor)
Encrypt or decrypt any file with just one click inside your browser!
Metis (Μῆτις) password generator
Metis (Μῆτις) password generator help you to have a unqiue password per website with a unique key.
NoLeaks
Audit potential privacy leaks on websites
Cookie Pirate
Keep cookies from leaving your browser.
Encryption
暗号化により個人での対応と社会的ネットワーク
PreferSafe
Announce your preference to see nothing but vanilla content
History Limiter Custom Refresh
Limits the number of items the browser will keep in history by days. Cosmetic refresh of iron2000's work. Broom icon by Roundicons.
WorkspaceCrypto
Workspace Crypto Extension
Local pass store
A password manager with local storage, a bit like old WAND.
MD5 Lock - Password Securer
Secure your passwords.
Insight™
Provides website information such as Rank, and checks URLs against suspected pages.
GenPass - Умный генератор паролей
GenPass - Smart password generator lets you to create a strong easy remembered password of high cracking resistance.
IDN Safe
IDN Safe is a browser extension which blocks internationalized domain names to prevent you from visiting probable fake sites.
PfP: Pain-free Passwords
A simple and secure password manager to be used with KeePass databases.
Cockatoo
Secure password aggregator.
Bump
Hide your real email and control who can send you messages. Generate new emails with one click is pretty easy.
ProSe - Privacy Policy Analyzer
Pro Se reads and analyses privacy policies on your behalf. It empowers you to make informed decisions about your privacy rights.
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.