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Development of extensions for Chrome, Edge and Firefox

121 views#2557
Listing period8 daysuntil 24.11.2026
Posted26.08.2026
Views1215 in 14 days

About the service

I develop browser extensions and lead the project from the first idea to a published store addon. In my work I use content scripts that change the content of open pages, background service workers that continue working when the popup is closed, and neat popup windows where everything launches with one click. I store settings and data in local and sync storage so they survive browser restart and move with the user to other devices.

The main part of the work is connecting the browser with external services. I connect extensions to REST and GraphQL APIs, set up OAuth and token refresh, respect request limits and cache responses to keep the interface fast. If automation is needed, I monitor pages, fill and submit forms, collect data and send results on schedule straight to your spreadsheet or dashboard — without manual copying.

I also handle the transition to Manifest V3, careful permission granting, moderation-safe code and communication with the store, so you get an extension that passes review on the first try and short instructions for future edits.

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Content H.Web programming
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