Selenium IDE is an integrated development environment for Selenium tests. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests.

Selenium IDE: Automated Testing Tool as Firefox Add-On
Selenium IDE is a Firefox add-on designed to ease website automation, testing, and eliminate the need for manually handling repetitive tasks. It records and plays back tests on Firefox and Chrome, organizes tests into suites for better management, and supports saving and loading of scripts for future use.
Add-on stats
Manifest V2
By: Selenium
Rating: 4.33
(401)
Weekly download count: 3,236
Firefox on Android: No
Permissions:
- tabs
- activeTab
- contextMenus
- downloads
- webNavigation
- storage
- debugger
- <all_urls>
Size: 4.20M
URLs: Website
Full description: See detailed description
Ranking
# 360 ▲ 5
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
User reviews
Pros
- Very useful for automating test cases and projects
Cons
- Causes issues with Cloudflare bot checks when enabled.
- Shows deprecation components error in devtools console that distracts from real errors/warnings during development/testing.
- XML content is not rendered as a foldable XML tree when the add-on is active.
Most mentioned
- Issues with Cloudflare bot checks when enabled
- Deprecation errors in devtools console
- Problems rendering XML content
User reviews
by clark, 2025-02-16
by Firefox user 15459527, 2025-01-18
developer.mozilla.org/77553322AHST
by 77553322AHST.Add-ons Firefox Android, 2025-01-04
Add-on safety
Risk impact
Selenium IDE requires a lot of sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Allows for debugging of other web apps and extensions, which can intersect with sensitive information and security boundaries.
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Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of Selenium IDE. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
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