FirstTx DevTools

Browser DevTools for debugging FirstTx apps

As of June 2026, FirstTx DevTools has users in the Developer Tools category.

Usersno change0%
Ratingno change0%
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Reviewsno change0%
Version
0.1.0
Manifest V3

History

2 snapshots

Tracking since Apr 18, 2026.

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DateUsersRatingReviewsVersion
Apr 18, 20260.1.0
Apr 28, 20260.1.0
Now0.1.0

Permissions & access

Permissions
storage
Host access
None declared

Screenshots

FirstTx DevTools screenshot 1FirstTx DevTools screenshot 2FirstTx DevTools screenshot 3

About

# FirstTx DevTools

The official debugging companion for FirstTx - a library that eliminates blank loading screens in CSR applications.

## Why You Need This

Without DevTools, debugging FirstTx feels like flying blind,
❌ "Why didn't prepaint restore?"
❌ "Which model triggered sync?"
❌ "Did my transaction rollback?"

With FirstTx DevTools, you see everything,
✅ Timeline view showing exact timing
✅ Transaction grouping with rollback visualization
✅ Model sync triggers with duration
✅ Advanced filtering by category and priority

## Key Features

### 1. Timeline Visualization
- 4-lane layout for Prepaint, Model, Tx, and System events
- Automatic time scaling with smart intervals
- Event grouping by transaction and model

### 2. Advanced Filtering
- Filter by category (All/Prepaint/Model/Tx/System)
- Filter by priority (All/Low/Normal/High)
- Full-text search across events
- Error-only toggle for quick debugging

### 3. Event Detail
- Collapsible JSON view
- Copy-to-clipboard for data
- Priority and category badges
- Formatted timestamp display

### 4. Resizable Panel
- Drag-to-resize event detail panel
- LocalStorage persistence
- Smooth resize interaction

## Requirements

- Apps using @firsttx/prepaint
- Apps using @firsttx/local-first
- Apps using @firsttx/tx

## Get Started

1. Install the extension
2. Open DevTools (F12)
3. Find "FirstTx" tab
4. Interact with your app to see events

## Open Source

GitHub: https://github.com/joseph0926/firsttx
MIT License

## Support

Questions? Issues? Visit our GitHub repo or email [[email protected]]

Technical

Version
0.1.0
Manifest
V3
Size
263KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
onpdifkipmmkajdhodmpphmlpbnopkdd
Developer ID
ub5a5bfe729e29579692cecbd3a11e9e6
Developer Email
[email protected]
Created
Oct 28, 2025
Last Updated (Store)
Oct 28, 2025
Last Scraped
Jun 5, 2026
Website

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Data sourced from the Chrome Web Store · last verified Jun 5, 2026.