Edge add-on with keyword - prevent

Prevent duplicate tabs

Disable WebRTC and prevent IP leak.

Prevent closing of web browser with the last tab, the least intrusive way.

Tulip: Detect and avoid abusive sites as you browse. Prevent spam and protect your personal info.

Boost Your Browser's Volume and Hear Every Detail

Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, YouTube and all other websites.

Stop all kinds of ads and protect from malware. Adblock software

Prevent storing browser history based on keywords you specify!

Prevent storing browser history based on keywords you specify!

Hides the zip code that appears on the amazon home page to prevent accidents from showing up in screenshots.

It notifies you every twenty minutes about the 20-20-20 rule to prevent eye strain.

Prevent your computer from going to sleep while downloads are in progress.

Checks site URLs of websites to prevent opening the same link twice. Closes duplicate tabs and selects the old tab instead.

Re-enable the possibility to use the context menu, copy, paste, and text selection on sites that prevent them.

Centers the browser at 16:9 as well as periodically shifting the window position by a few pixels to prevent OLED burn-in.

Helper of Web Learning of Tsinghua University, showing course notices, homeworks, deadlines and other information in one page, providing one-stop service

Before sending e-mail, check From, To, Cc, Bcc, subject, and attached files to prevent erroneous transmission. (C)SEYA.WORK

Maximum protection for your browser: NoScript allows active content only for trusted domains of your choice to prevent exploitation.

Prevent screen dimming or activating a screen saver by overriding power-saving settings to keep the system or display awake

Prevent YouTube page, HTML5 player, and Flash player from displaying advertisements and banners

Easy way to block distracting websites to prevent access while you work

IDN Safe is a browser extension which blocks internationalized domain names to prevent you from visiting probable fake sites.

Prevent HTML canvas element from generating a unique identification key to protect user's privacy

Boost your video or music volume with Volume Booster! Control both volume and bass effortlessly

This extension causes the browser to be minimized, not closed, when user is closing the last tab.