Highlight This: finds and marks words
Automatically finds and highlights words and phrases on the web page according to your list
2,483 users
Old Layout for Facebook
Revert Facebook to the Old Layout (pre-Sep 2020) by changing your browser's user-agent string to one not supported by the new layout
2,480 users
VK Next - функции для ВКонтакте
Лучшее расширение для ВКонтакте с множеством функций, в числе которых есть эксклюзивные.
2,443 users
Old Twitter Layout (2026)
An extension that returns old Twitter's look from 2015 or 2018. WORKS IN 2026!
2,420 users
YouTube™ dual subtitles
Automatically switch to local language, bilingual subtitles, subtitle download, subtitle dubbing, custom subtitle style. Default subtitles: Set the translation language.
2,392 users
Merge Windows
Merges the tabs from multiple windows together into one window. Extension won't show context menu item when there aren't more than one window of the same type to merge together. Private windows will only merge with private windows not normal.
2,377 users
Lightbeam
Lightbeam is a Firefox browser extension that uses interactive visualizations to show you the relationships between third parties and the sites you visit.
2,352 users
🖐️ Dastyar Personal Assistant
Productivity and focus with Todo List,Calendar,Weather,Background Photo,Dark theme, Organize Bookmark, Folder, Search, Font.
2,343 users
Copy All Tabs
Copy All Tabs takes the address and title for each tab and creates a text list of links. The list is copied to your clipboard so you can paste it to your notes. You can also open tabs from a previously saved list of links. Similar to CopyAllUrls.
2,304 users
Popupblocker
Popupblocker can block every popup. Many websites open new windows with ads, when you try to mark text or click something. This add-on will block these and show a really small notification.
2,274 users
Reader View
Strips away clutter like buttons, background images, and changes the page's text size, contrast and layout for better readability
2,274 users
Personal Blocklist (not by Google)
Blocks domains/hosts from appearing in your Google search results.
2,260 users
Snooze Tabs
Snooze Tabs help you focus your attention online, whether you want to remove distractions for now or save something for later. Hit the snooze icon to dismiss tabs you don’t want now, and set an alarm to bring them back when you need them.
2,209 users
Mobile Dyslexic
Mobile Dyslexic replaces all fonts of all web pages with carefully crafted special font which is easier to read by people with dyslexia.
2,194 users
BlockDistraction – Block Site Extension
Privacy-first website blocker for Firefox desktop and Android. Get 10 rules free; Pro adds schedules, daily limits and lifetime access.
2,191 users
Claude in Sidebar
Chat with Claude AI directly in your browser sidebar. Summarize articles, explain code, translate pages, and get instant answers without switching tabs.
2,185 users
