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PDF Mage
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Smartphone emulator on computer very realistic with several models to test mobile websites.
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easyScholar
工欲善其事,必先利其器。好的科研工具,能够让您提升数倍的学习效率。
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Lock Adblock: A lightweight, permissionless and user-friendly ad blocker for ads, trackers and malware.
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FranceVerif
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Custom Scrollbars
Give Firefox a personal touch with customized scrollbars!
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Cookiebro - Cookie Manager
Advanced cookie manager for easy cookie management and automatic deletion of unwanted cookies. Supports whitelist & blacklist and provides an easy-to-use interface for whitelisting domains. View, Edit, Create, Search cookies in Cookie Editor.
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Indie Wiki Buddy
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enhanced-h264ify
Choose what video codec YouTube should play for you
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Save Page WE
Save a complete web page (as currently displayed) as a single HTML file that can be opened in any browser. Save a single page, multiple selected pages or a list of page URLs. Automate saving from command line.
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cookies.txt
Exports all cookies to a Netscape HTTP Cookie File, as used by curl, wget, and youtube-dl, among others.
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Purple AdBlock is a adblock for Twitch.tv
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Emoji
It permits just with a single click to copy an emoji. There is a search-box and the "Most used emojis" section (the first one). If you want to send feedback or report bug, please contact me: https://www.emojiaddon.com/help
21,007 users
Calendly: Meeting Scheduling Software
Eliminate the back-and-forth of scheduling. Manage your meetings, scheduling links, and contacts — all in one place, from wherever you’re already working online.
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User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
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Snap Links Plus
Select a number of links with a rectangle and open them in new tabs. You can also lasso checkboxes to quickly check or uncheck them. Works with radio buttons as well.
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HyperChat [Improved YouTube Chat]
Improved YouTube chat with CPU/RAM optimizations, customization options, and cutting-edge features!
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Speed Dial
Speed Dial allows you to add and manage bookmarks in the New Tab page and gives you an optional search experience.
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City Scapes
A beautiful new tab for your Firefox browser with a City Scapes theme.
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