Selenium IDE is a browser extension that records clicks and replays them. Sounds simple, right? It is. Until your first test breaks and you realize you've signed up for a lifetime of selector debugging.
Record-and-Playback: The Honeymoon Phase
The pitch is seductive: click record, interact with your app, hit stop. Boom - automated test. Zero coding required.
This works perfectly for exactly one scenario: your UI never changes. Which means your product is dead.
Here's what actually happens in real teams:
First week you're like "Holy shit, I recorded a login flow in 30 seconds!"
Then CSS classes change and everything breaks. Frontend dev renamed id="login-btn"
to class="btn-login"
and didn't tell anyone. Three more tests die when someone refactors the form structure.
Eventually you're spending more time fixing broken tests than writing new features. That's when you rage-quit and learn Playwright.
Installation (The Only Easy Part)
Chrome Web Store or Firefox Add-ons. Click install. That's it.
No WebDriver version matching hell. No chromedriver PATH struggles. No "works on my machine" deployment nightmares. This is literally the only part that just works.
Unlike WebDriver setup where you spend 3 hours matching chromedriver to your Chrome version, or Playwright's Node.js version hell, Selenium IDE just... works. No dependency bullshit.
What Actually Gets Recorded
Every mouse twitch becomes a command:
- That accidental double-click? Two separate
click
commands - Auto-complete dropdown that popped up? Good luck figuring out why tests randomly fail
- SPA route changes with no URL change? The IDE has no fucking clue what happened
- Form validation that appears after 200ms? Hope you like
NoSuchElementException
The IDE pretends to be smart by generating backup selectors - id
, css
, xpath
, whatever. When id="login"
breaks, it tries css=input[type="submit"]
. When that breaks, it tries some XPath garbage.
This fallback bullshit works maybe 30% of the time. The other 70% you're fixing selectors at 2am because CI is red and your deploy is blocked.
The 2018 Rewrite (Still Not Production-Ready)
When Firefox killed XUL extensions in 2017, thousands of tests died overnight. Selenium rebuilt the IDE from scratch:
- Cross-browser support (Chrome, Firefox, Edge)
- Control flow commands (
if
,while
loops) - Code export to real languages
- Command-line runner for CI
Here's the problem: if you need any of these features, you should be writing actual WebDriver code. The exported code is trash - generic variable names, no page objects, zero error handling. You'll rewrite everything anyway.
Every team does this:
- "Let's try record-and-playback for quick wins"
- Tests break every sprint when CSS changes
- Export to WebDriver after rage-quitting
- Delete IDE extension
When It Actually Works
Record-and-playback isn't completely useless. It's decent for:
- Smoke testing stable legacy systems
- Quick regression checks on components that never change
- Demoing test concepts to non-technical stakeholders
- Learning what WebDriver commands look like before writing code
But if your app is actively developed, skip the pain and learn Selenium WebDriver directly. Or consider modern alternatives like Playwright, Cypress, or AI-powered tools that handle UI changes automatically.
Speaking of alternatives - let's see how Selenium IDE stacks up against the competition. The comparison might surprise you (spoiler: it doesn't).