All extensions

Set a custom video skip duration and resume where you left off. Works on ultiworld.com; not affiliated with Ultiworld.

UltraFast Download Manager — browser integration

Send browser downloads, page links and video streams to UltraFast Download Manager on this computer.

Ultrahumanizer: AI Humanizer & Writing Tools

Use an AI humanizer to revise selected or pasted text, review changes, and apply the result where you write.

Ultra Saiyan

Blocks adult, gambling, dating and social-feed pages. One network request type: re-fetch a shown image to classify it on the device.

Ultra WhatsApp

Registra mensagens do WhatsApp Web no CRM de alunos

Umbra — Observador de Navegação

Coleta domínio e tempo ativo por aba para o Umbra — nunca conteúdo de páginas. Desligado por padrão.

Umoh Agent

Agent for all event platforms

UMPIRE

Companion for self-hosted UMPIRE. Requires your UMPIRE API server. Toolbar health badge and outage notifications.

Unabyss — Save to Context

Save any web page, article, video, or image to your Unabyss knowledge base.

Unagasukun

A gentle habit helper that tells you "it's time for ..." No blocking, no guilt — just a nudge toward your next action.

Unblockerly

Unblockerly: The RightClick Hero. Re-enables right-click and text selection on websites.

Unboring

Rewrite bland X drafts into fun posts. One-click next to compose. BYOK: OpenAI, Claude, DeepSeek, Kimi, or custom.

Unbury Subject Line Checker

Check your email subject line before you hit send — spam trigger words, length, caps and a Gmail-style preview. Free, by Unbury.

UncDoIt Site Guide

Visual guide via POST /api/guide; optional TTS and voice goal input (POST /api/transcribe).

5.0

Uncensored AI Chatbot

AI chat, images and videos in Chrome. Capture screenshots, explain or translate, and create with GPT, Claude and uncensored models.

unDalton

Allows the user to modify the appearance of a web page using contrast, saturation and hue filters.

5.0

Undastandable Transcriber Helper

Copies a YouTube video's transcript to your clipboard for the Undastandable Transcriber. Reads only on-page transcript text.

Underemployed.io

Autofills job applications using your saved profile.

Undo Closed Tabs - Tab Restore

Quickly restore recently closed tabs with a single click. Fast, minimal, and privacy-friendly.

5.0

Unfaded

Save it now. Find it later. Save pages, links, text and images to your Unfaded library in one click.

Unfeeder

Take back your attention. Add your feeds, check them once per day and then unfeeder will hide them until the next day.

UnfoldShot — Full Page Screenshot

Capture the visible area for free. Unlock full page screenshots with Pro for €4.99 once. Save as PNG, JPEG or image PDF.

Unfollower Scheduler

Automated Instagram unfollowing with scheduling capabilities

Unhooked Jernyx

Makes internet less addicting for Jernyx