Open Subtitles

Add subtitles to any HTML5 video sites such as Youtube, Netflix, Amazon Prime Video, Disney+, HBO Max and other stream sites.

Open Subtitles Add-On for Firefox: Enhance Video Viewing

"Open Subtitles" is a Firefox add-on that offers comprehensive subtitle support for all HTML5 video sites. With features like auto detection of video title, subtitle synchronization, and customization, it hopes to revolutionize your video viewing experience. This user-friendly extension supports popular sites like Youtube, Netflix, Amazon Prime Video, and more, allowing you to add and customize subtitles as per your need.
Download
View on Firefox Browser Add-ons

Add-on stats

Users: 1,870
-17
Rating: 3.60
(10)
Version: 6.3.8 (Last updated: 2023-10-02)
Creation date: 2022-05-18
Weekly download count: 98
Firefox on Android: No
Risk impact: Moderate risk impact
Risk likelihood:
Low risk likelihood
Manifest version: 2
Permissions:
  • activeTab
  • storage
  • https://*.plus-sub.com/*
  • https://gqlos.plus-sub.com/*
  • https://*.opensubtitles.org/**/*
  • https://*.opensubtitles.com/**/*
  • webRequest
Size: 657.85K
URLs: Website

Ranking

# 2,168 ▼ 3
Other rankings
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Other platforms

Open Subtitles (v6.3.8)
3.42 (19) 8,000
Open Budget (v2.3.0)
4.43 (2,353) 940,270
Not available on Edge
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Add-on summary

Analyze keywords

Open Subtitles extension provides subtitles experience to any HTML5 video site (youtube, netflix, amazon prime, hulu and other streaming sites)

Features: • Search - autodetection of title, download and view subtitles in videos from OpenSubtitles.com • Drag and drop subtitles file if you want custom subtitles • Supported subtitle formats: *.srt, *.vtt, *.ass, *.ssa • Works on iframes (embedded videos) • Synchronize subtitles to video • Customize Subtitles color, background color, transparency, font size • See transcription/text of video/subtitles, possible copy with shift+left-click • Jump to timestamp with left click

How to use:

  • Install the extension to your browser.
  • We recommend to pin it to navigation bar, so you can use it easily
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User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Works excellently
  • Simple and effective
  • Works perfectly and has a lot of useful features
Cons
  • Subtitle overlapping issue when font size is increased
  • Limited offset time adjustment
Most mentioned
  • Works well for finding missing subtitles
  • User-friendly
User reviews
by TechyonHavok, 2024-12-05
by jojojo, 2024-08-24
View all user reviews

Add-on safety

Risk impact

Open Subtitles requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

Open Subtitles has earned a fairly good reputation and likely can be trusted.

Upgrade to see risk analysis details