Better View Image
A sensible, configurable, no-nonsense image viewer. Controls: * Right+Left click any image to activate the viewer. * Mousewheel to zoom. * Left mouse drag to pan. * Middle click to switch scaling modes. See options page for configuration.
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Tabs Unloader
Unloads the oldest tabs when the count of loaded into memory tabs exceeds the limit set by user. User can mark important tabs to avoid their unloading. Extension's behavior can be additionally configured by options provided in popup.
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Proxy Per Tab
Choose direct connection, browser proxy, or a saved proxy preset for each Firefox tab.
39 人のユーザー
ctrl-f ULTRA – Find in page, regex, PDFs
A browser extension that supercharges your native Ctrl+F with regex, multi-term highlighting, and advanced search capabilities.
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Mute New Tabs
Many sites auto-play videos, send fake chat messages and create general nuisance while listening to music. This add on mutes all newly opened tabs.
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Shift+LeftClick opens links in a new active tab
This simple addon opens links in a new active tab with Shift+LeftClick (left mouse button click), not in a new window Mainly for users, who used this shotcut in other browsers (e.g. Opera 12). You can select your own mouse + mod key combination.
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Save Tab URLs to Markdown
Save open tabs to markdown so that you can maintain references and context without leaving so many tabs open.
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Captura de Área
Captura área Capture exatamente o que você precisa em qualquer site com apenas dois cliques! Esta extensão elimina a necessidade de tirar prints da tela inteira para depois recortar.
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Send2AI - 浏览器AI助手 - AI客户端 支持DeepSeek & ChatGPT
Send2AI -免费、轻量的浏览器AI客户端，支持侧边栏模式的AI助手，下载即可使用内置AI助手。可自由接入ChatGPT、Gemini、DeepSeek、Olama（本地AI）等模型。可以将你想要的内容通过右键 "Send To AI" 进行对话。无需登录注册，不收集用户个人信息。
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Open With Opera
Open With Opera sends pages, links, tabs and images from Mozilla Firefox to Opera.
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atomshot
This extension takes a screenshot with atomic-clock backed timestamp for legal purposes.
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Today's Pages
Opens pages based on the day of the week. Keep up to date with regularly updating blogs and webcomics, or open up daily tasks.
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fhosts
Override DNS resolution for specific domains on a per-tab basis for local development or staging environments - test your app with production hostnames without editing system files.
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Black theme for Facebook
The dark theme protects the eyes, changing the Facebook theme to black. For those who do not like the white theme Facebook.
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Whois Checker
The Whois Checker! IP Checker extension identifies your IP address with just one click, please note it DOES NOT hide or change your IP address. This tool is to be used to check your current IP address.
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Lazy tabs
Open links in paused (discarded) tabs and pause selected tabs (from the right-click context menu). Also with "Lazy Mode".
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