拡張機能
Download Virus Checker
Automatically check all the download files against well-known anti-viruses using VirusTotal API
Browse with Onion
Easily browse desired websites with tor (onion) proxy!
Content filter
Blocks access to unwanted websites on the Internet for homes, educational institutions and libraries.
KANOPE
Switch between no proxy and Tor , blocks some common attacks and trackers and more !
Block Image|Video
Easily block all images & videos within a website!
User-Agent Switch for Opera
Switch between popular useragent strings from toolbar popup!
SingleClick Cleaner
Clean up the trash in one single click
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
Security Tweaks
Improve your security and browse safer with seven tweaks.
Security Plus
Provides free checking of urls for viruses. It uses up to 64 different antivirus products and scan engines to check for viruses
CryptoStop
This extension blocks cryptocurrency mining scripts and protects you from such websites.
Local CDN
Local emulation of Content Delivery Networks
Twitter Redirect Fixer
Twitter adds redirection to all shared links to learn what links you click. This extension removes redirection (Twitter + 3rd-party) to protect your privacy. As a side-effect, all links will load faster.
Policy Control - JavaScript and Flash blocker
Block third-party or all resources of style, script, image, font, xmlhttprequest types
Policy Control
Gain complete control over all content settings (cookie, images, javascript, etc.).
Self-Destructing Cookies
Delete cookies when browser is closed or once the tab is closed to prevent tracking
Eraser
Erases annoying elements.
WebAPI Blocker
Easily block (nullify) undesired Web API(s) and improve your privacy.
Adblocker for Facebook™ (sponsored posts)
A super fast sponsored posts removal tool for Facebook™
STOP-IT V2
STOP-IT V2 Ultimate Adult Content Blocker Extension. Safe and Easy Surfing.
NERBlock
This add-on blocks websites spreading the propaganda of the "Nemzeti Együttműködés Rendszere" (N.E.R.).
PreferSafe
Announce your preference to see nothing but vanilla content
Disable Page Visibility API
Prevent websites from tracking whether you are currently in another tab/ window.
Flash Blocker Strict
Strictly block all Flash contents from loading (supports whitelisting)
Decryption RSA
Decryption of encrypted data on RSA key
Filter request headers
Block certain values (cookies, etc.) from http request headers.
NoLeaks
Audit potential privacy leaks on websites
Google™ Hangout Seen Blocker
Google™ Hangouts Seen Blocker allows you to read your hangouts without notifying the sender.
Privacy Protector Plus
removes all forms of tracking including web-bugs, tracking-scripts and information-collectors, and protects your personal data.
Show Password
Show passwords as you type.
MD5 Lock - Password Securer
Secure your passwords.
4b42 GeoIP