# Custom SubUploader

> Upload your own .SRT or .VTT subtitles and sync them with any video.

Canonical page: [https://chrome-stats.com/d/custom-subuploader](https://chrome-stats.com/d/custom-subuploader)

## Overview

- **ID:** `custom-subuploader`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Ahmad Rosario
- **Category:** language-support,photos-music-videos
- **Daily users:** 1
- **Version:** 3.0.3
- **Last updated:** 2025-04-05
- **First published:** 2025-04-02
- **Size:** 311 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/custom-subuploader/)

## Description

Custom SubUploader lets you upload your own subtitle files in .SRT or .VTT format and sync them manually with any video. A must-have tool for watching foreign content with your own translations!

## Rankings

- #126,875 — Overall

## Permissions and access

### Permissions

- `scripting`
- `storage`
- `activeTab`

### Host permissions

- `https://translate.google.com/*`
- `http://localhost:8765/*`
- `https://api.lingualeo.com/*`

### Content script matches

- `www.netflix.com`
- `www.youtube.com`
- `www.coursera.org`
- `kinopub.net`
- `kino.pub`
- `kinopub.cc`
- `app.plex.tv`
- `plex.ukrapka.tech`
- `www.udemy.com`
- `hd.kinopoisk.ru`
- `www.amazon.de`
- `www.primevideo.com`
- `inoriginal.online`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Request access to the following domains: netflix.com, youtube.com, coursera.org, kinopub.net, kino.pub, kinopub.cc, plex.tv, ukrapka.tech, udemy.com, kinopoisk.ru, amazon.de, primevideo.com, inoriginal.online, google.com, localhost, lingualeo.com
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/custom-subuploader)