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

Allow context menu, right click, allow copy, selection on web sites that prevent it

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.

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

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.

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

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

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

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

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

Don't waste your time with compliance. FastForward circumvents annoying link shorteners.

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

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

Increase your max volume! Amplify sound volume by up to 600%. Control sound of any tab.

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