# Tailor-made browser extensions for increased testing efficiency

DevFeed: [Tailor-made browser extensions for increased testing efficiency](<https://devfeed.tech/articles/tailor-made-browser-extensions-for-increased-testing-efficiency-28053.md>)

Original publisher: [Read original article](<https://tech.trivago.com/post/2025-04-23-tailor-made-browser-extensions-for-increased-testing-efficiency/>)

Author: Raymond Saba I'm an SDET who enjoys building test automation; Finding Ways

Published: 2025-04-23T00:00:00Z

Content type: article

Language: en

Sources: [Trivago](<https://devfeed.tech/sources/trivago.md>)

Topics: [Testing](<https://devfeed.tech/topics/testing.md>), [Browser Extension](<https://devfeed.tech/topics/browser-extension.md>), [Extension](<https://devfeed.tech/topics/extension.md>), [Development](<https://devfeed.tech/topics/development.md>)

Tags: [browser](<https://devfeed.tech/tags/browser.md>), [development](<https://devfeed.tech/tags/development.md>), [extensions](<https://devfeed.tech/tags/extensions.md>), [quality-assurance](<https://devfeed.tech/tags/quality-assurance.md>), [reverse-engineering](<https://devfeed.tech/tags/reverse-engineering.md>), [test-automation](<https://devfeed.tech/tags/test-automation.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

The article describes how trivago's QA team used custom browser extensions to support exploratory testing, reduce cumbersome testing processes, and save time. It discusses an extension created through reverse engineering to inspect Google Tag Manager data-layer values and another that identified the version of the trivago website being viewed.

## Source excerpt

When doing exploratory testing on a web application, the nature of activities involves discovering things and not repeating the same patterns. However, there might be aspects that could be impro...