拡張機能
BIFIT Signer
BIFIT digital signature plug-in
User-Agent Switch for Opera
Switch between popular useragent strings from toolbar popup!
Browse with Onion
Easily browse desired websites with tor (onion) proxy!
Policy Control
Gain complete control over all content settings (cookie, images, javascript, etc.).
Content filter
Blocks access to unwanted websites on the Internet for homes, educational institutions and libraries.
SingleClick Cleaner
Clean up the trash in one single click
KANOPE
Switch between no proxy and Tor , blocks some common attacks and trackers and more !
CryptoStop
This extension blocks cryptocurrency mining scripts and protects you from such websites.
Eraser
Erases annoying elements.
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
Self-Destructing Cookies
Delete cookies when browser is closed or once the tab is closed to prevent tracking
NERBlock
This add-on blocks websites spreading the propaganda of the "Nemzeti Együttműködés Rendszere" (N.E.R.).
Security Plus
Provides free checking of urls for viruses. It uses up to 64 different antivirus products and scan engines to check for viruses
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.
Local CDN
Local emulation of Content Delivery Networks
Flash Blocker Strict
Strictly block all Flash contents from loading (supports whitelisting)
STOP-IT V2
STOP-IT V2 Ultimate Adult Content Blocker Extension. Safe and Easy Surfing.
Security Tweaks
Improve your security and browse safer with seven tweaks.
Disable Page Visibility API
Prevent websites from tracking whether you are currently in another tab/ window.
Show Password
Show passwords as you type.
Adblocker for Facebook™ (sponsored posts)
A super fast sponsored posts removal tool for Facebook™
WebAPI Blocker
Easily block (nullify) undesired Web API(s) and improve your privacy.
Block Image|Video
Easily block all images & videos within a website!
Link Revealer
See the true URL for all links and improve your security!
Decryption RSA
Decryption of encrypted data on RSA key
Policy Control - JavaScript and Flash blocker
Block third-party or all resources of style, script, image, font, xmlhttprequest types
Filter request headers
Block certain values (cookies, etc.) from http request headers.
NoLeaks
Audit potential privacy leaks on websites
HTML format cleaner
Right-click context-menu to clear HTML formating (remove HTML tags) and copy as plain text
Lasource Helper
Lasource Helper
Zoom Redirector
Zoom Redirector transparently redirects any meeting links to use Zoom's browser based web client.
PreferSafe
Announce your preference to see nothing but vanilla content