manifest v3 browser extension engineering
Build Powerful Chrome Extensions That Millions Can Use
Whether you are launching a SaaS product, creating an AI assistant, automating workflows, or extending your web application, HalfAccessible develops custom Chrome extensions built for performance, security, accessibility, and long-term maintainability.
We build Manifest V3 extensions for startups, enterprises, agencies, and software companies.
Chrome extension development is the process of creating browser extensions that extend Google Chrome with custom functionality. Modern extensions are built using Manifest V3, JavaScript or TypeScript, HTML, CSS, and Chrome Extension APIs to automate workflows, integrate with web applications, enhance productivity, or provide new browser capabilities. Google recommends Manifest V3 for improved privacy, security, and performance.
A Chrome extension adds product features directly inside the browser, from AI assistants and SaaS workflows to enterprise automation, developer tools, and productivity interfaces.
A Chrome extension can transform an existing website or web application into a more powerful product without requiring users to leave their browser.
Extensions can reduce context switching, bring actions closer to user workflows, and make browser-based tasks faster.
A companion extension can connect your SaaS product to web pages, CRMs, dashboards, inboxes, support tools, and internal workflows.
Browser automation can help users complete form entry, data capture, page actions, and recurring browser tasks more efficiently.
AI extensions can summarize, translate, generate content, answer questions, review pages, and assist users inside the browser.
Extensions keep your product accessible from the toolbar, side panel, context menu, and pages where users already work.
Enterprise extensions can streamline internal dashboards, employee tools, corporate portals, and business automation workflows.
A Chrome extension can be a standalone product, an acquisition channel, a SaaS companion, or a specialized workflow tool.
Store-ready extensions can reach users searching for productivity, AI, accessibility, developer, education, finance, and automation tools.
We support custom extension builds, Manifest V3 migrations, publishing, enterprise deployment, AI extensions, and long-term maintenance.
Build extensions tailored to your product, users, workflows, and business goals.
Upgrade legacy Manifest V2 extensions to Manifest V3 with modern architecture, service workers, permissions, and APIs.
Prepare and publish extensions with store-ready assets, metadata, permissions explanations, packaging, and listing support.
Develop internal extensions for organizations, including deployment through managed enterprise environments.
Integrate OpenAI, Gemini, Claude, or custom AI services into secure browser workflows.
Provide ongoing feature development, compatibility updates, Chrome API support, policy updates, and release support.
We build the browser automation, injected UI, API integrations, AI workflows, storage, and extension surfaces that turn extension ideas into products.
Extensions that summarize, translate, draft, review, classify, or assist directly inside browser workflows.
Browser companions that connect SaaS platforms to customer workflows, web apps, CRMs, and portals.
Browser-based tools for audits, WCAG checks, developer workflows, overlays for evaluation, and issue discovery.
Managed browser extensions for employee workflows, internal dashboards, operations, and corporate systems.
Extensions for form automation, workflow automation, page interactions, and structured data capture.
Extensions that connect browsing, lead research, customer records, sales workflows, and CRM updates.
Tools for prospecting, enrichment, outreach, research, note capture, and sales workflow automation.
Extensions for content workflows, analytics, campaign support, competitive research, and publishing workflows.
Extensions that connect support teams to knowledge bases, tickets, customer data, and browser context.
Structured browser-based data collection with careful permission, privacy, and compliance planning.
Developer tools, debugging helpers, testing tools, API utilities, and workflow accelerators.
Extensions for clipping, note taking, summarization, source capture, tagging, and browser-based analysis.
Chrome extensions can support many product categories, from AI assistants and SaaS companions to enterprise utilities and developer tools.
Whether you are building an AI assistant, enterprise productivity tool, browser automation solution, or SaaS companion extension, HalfAccessible can help you design, develop, test, and publish a secure, accessible, and scalable Chrome extension built on Manifest V3.
Start Your Chrome Extension ProjectAnswers to common questions about Manifest V3, Chrome Web Store deployment, AI extensions, browser automation, enterprise extensions, accessibility, security, and maintenance.
Manifest V3 is the current Chrome extension architecture that defines how modern extensions declare permissions, service workers, content scripts, extension pages, APIs, and security requirements.
Yes. We can migrate Manifest V2 extensions to Manifest V3 by updating the manifest, background logic, service worker architecture, permissions, APIs, and Chrome Web Store readiness.
Yes. We can prepare extension packages, listing copy, screenshots, icons, metadata, privacy disclosures, permissions explanations, and support the Chrome Web Store review process.
Yes. We build internal Chrome extensions for organizations, including managed deployment considerations for enterprise environments.
Yes. Extensions can connect to SaaS platforms through REST APIs, GraphQL, OAuth, webhooks, embedded UI, CRM workflows, dashboards, and authenticated user accounts.
Yes. We build AI extensions that integrate OpenAI, Gemini, Claude, or custom AI services for chat, summarization, translation, writing assistance, accessibility suggestions, and workflow automation.
Yes. We support secure authentication flows, OAuth integrations, token handling, API access, and user state management for browser extension products.
Yes. We can build Chrome side panel extensions with accessible layouts, responsive UI, keyboard support, and integration with extension background logic.
Yes. We build extensions for autofill, form automation, page interactions, data extraction, workflow automation, and CRM or SaaS integrations.
Yes. We provide compatibility updates, Chrome API support, policy updates, feature development, bug fixes, performance improvements, and store release support.
Yes. We can plan extension architecture with cross-browser compatibility in mind, depending on API support across Chrome, Edge, Firefox, and other Chromium-based browsers.
Timeline depends on extension complexity, UI surfaces, target websites, permissions, authentication, integrations, AI features, testing needs, and Chrome Web Store review requirements.
We use Manifest V3, JavaScript, TypeScript, React, Vite, Tailwind CSS, Chrome Extension APIs, Firebase, Supabase, Node.js, REST APIs, and GraphQL where appropriate.
Yes. We build accessible toolbar popup interfaces with keyboard navigation, focus management, forms, buttons, state updates, and responsive layouts.
Yes. We build settings and options pages for account preferences, feature configuration, integrations, permissions guidance, and extension controls.
Yes. Content scripts can analyze, enhance, modify, or inject UI into webpages, subject to permissions, browser rules, website behavior, and user privacy expectations.
Yes. We can add context menu actions for selected text, links, pages, images, forms, and workflow-specific commands.
Yes. Extensions can support keyboard shortcuts where appropriate, and those shortcuts should be documented, configurable when possible, and tested for conflicts.
Yes. Extensions can send browser notifications, scheduled reminders, background task updates, and status alerts when designed with appropriate permissions and user expectations.
We use minimal permissions, secure authentication, bundled code, safe storage choices, least-privilege architecture, careful messaging, privacy-conscious data handling, and Chrome Web Store policy alignment.
Yes. We build extension popups, side panels, options pages, injected UI, and forms with keyboard navigation, screen reader support, visible focus, semantic HTML, and proper ARIA usage.
Yes. We can audit existing extension UI, popup flows, side panels, options pages, injected overlays, forms, keyboard behavior, and screen reader support.
Yes. We can review permissions, authentication, storage, message passing, content scripts, third-party scripts, data handling, and privacy-related risks.
Yes. We build developer utilities, debugging tools, accessibility testing tools, QA helpers, API tools, and workflow accelerators.
Yes. We build CRM extensions, prospecting tools, sales enablement workflows, data capture, account research helpers, and SaaS companion tools.
Yes. We can build browser-based accessibility testing tools, WCAG checkers, developer utilities, audit helpers, and accessibility evaluation workflows.
Manifest V3 changes background processing, permissions, extension APIs, service worker behavior, remotely hosted code rules, and security expectations compared with older Manifest V2 extensions.
Yes. We can review rejection reasons, update permissions, metadata, privacy disclosures, code behavior, policy compliance, and resubmit store-ready builds.
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