Category and language are appropriately selected

Miscategorized extensions are harder for users to find through browse and recommendation surfaces, because Chrome Web Store's category filters and featured placements are category-specific. An extension placed in Developer Tools when it belongs in Productivity won't appear in Productivity recommendations, missing the audience most likely to install it. Language mismatches — a Chinese-language extension claiming English-only — generate user complaints and one-star reviews from users who installed expecting English UI and got something unreadable.

Match your category to the extension's primary user task, not its implementation. Choose the single most accurate category from the Chrome Web Store options.

Productivity     — saves time, organizes information, manages tasks
Developer Tools  — inspects, debugs, or modifies web developer workflows
Search Tools     — changes or enhances search behavior
Accessibility    — improves web usability for users with disabilities
Fun              — entertainment, games, visual customization

For language: if your UI strings, descriptions, and store listing are in English, set the primary language to English. If you ship localization files in _locales/, list each supported locale in your store submission. Verify _locales/en/messages.json exists before claiming English support.