Most AI extension lists are twenty sidebars in a trench coat. This one is grouped by job: acting on a page, moving context, summarising, and collecting research.
1 / 4 - Acting on a page.by Anthropic
The strongest first-party option if you are already on a higher Claude plan.
Good at
- + Deepest possible Claude integration, built by Anthropic
- + Can act on the current page, not just read it
- + No third party sits between you and the model
Watch for
- - Availability has been limited and tied to higher-tier Claude plans
- - Oriented around the active tab rather than a batch of tabs
- - Agentic browsing carries its own risks on pages you are signed in to
by LocalBridge
The only one here whose entire job is getting several pages into the assistant you already pay for, without hosting a chat of its own.
Good at
- + Batch: several tabs in a single send
- + Keeps each page's title and URL so answers can be attributed
- + Strips navigation and boilerplate before sending
- + One-time licence rather than a subscription
Watch for
- - Chrome only
- - Does not host the chat: you use your own Claude or ChatGPT account
- - Cannot read browser settings pages or transcribe video
by Perplexity AI
Cited answers while you read, which is a different job from chatting about the page.
Good at
- + Answers come with citations by default
- + Strong for factual lookups while reading
- + Works as a search replacement
Watch for
- - Search-shaped rather than document-shaped
- - Built around Perplexity's own models and index
- - Current page focus, not multi-tab
by Glasp
The research archive option. Slower loop, but the highlights are still there next month.
Good at
- + Durable archive of what you highlighted
- + Good for long-running research
- + Export into your own notes
Watch for
- - Collection-first, not question-first
- - Highlighting is manual
- - Social features are not for everyone