Firefox Security Vulnerabilities
Anthropic's stacked bar chart drew 3.2M views on X: 7.5x its median post and #50 of 1,162 AI chart posts we hold by views. Read Oct 10, 2026.
We partnered with Mozilla to test Claude's ability to find security vulnerabilities in Firefox.
Why it spread
It spread because a big source account paired launch timing with a stacked bar showing a February spike, and the post earned 14,777 likes against a typical 3,114, which is 4.7 times normal, alongside 1,347 reposts, 408 quotes, 2,385 saves and 3,239,755 views.
What worked
- The stacked bar made the February spike visible at a glance, turning monthly Firefox security vulnerabilities by severity into one clear moment.
- The post text gave concrete proof: 22 vulnerabilities in two weeks, 14 high severity, and a fifth of all high severity bugs Mozilla remediated in 2025.
- Branding and launch timing worked together, since the account is an ai-lab source in the top quarter of reach and the quote rate was above average.
What to borrow
We could use a stacked bar to show a single month spike in our own data, then pair it with one plain sentence that states the total, the severe share and the comparison to a full year.
Careful
Do not copy the missing source line or treat the spike as proof of general capability, and do not over-read the reach as if it came from the chart alone rather than the big source and launch timing.
Written by our analysis model from the measured numbers above, not by Anthropic.
Make it yours
Your numbers, in a look-alike of the original.
Starts from the real numbers of "Firefox Security Vulnerabilities by Month" by Anthropic. Replace every number with yours before you post. Make one like this, step by step
Look-alike score 2.4 of 10. Free pictures carry a small "Made with ViralChart" line. That line is how other people find us.
API · Max
Use this chart via API
On the Max plan you can pull this chart's numbers with the provenance of each one, as JSON or CSV, with its redraw spec, or call it from an agent over MCP. Chart id 5e81bbfe7bb8.
| Path | Returns | Plan | |
|---|---|---|---|
| GET | /api/v1/charts/5e81bbfe7bb8 | Title, publisher, date, form, point count; with a Max key, the data link | Open |
| GET | /api/v1/charts/5e81bbfe7bb8/data | Every point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSV | Max |
| GET | /api/v1/charts/5e81bbfe7bb8/render?view=1 | The draw-only view this page uses | Open |
| POST | /mcp | Tool get_chart_data with this id, for Claude, Cursor and other agents | Max |
curl -s https://viral-chart.com/api/v1/charts/5e81bbfe7bb8/data \
-H "Authorization: Bearer $VIRALCHART_KEY"claude mcp add --transport http viralchart https://viral-chart.com/mcp \
--header "Authorization: Bearer $VIRALCHART_KEY"60 requests a minute per key; over that you get 429 with Retry-After. Up to 5 keys per account, made on your account page and shown once. Without Max, the data route answers 402 with a link to the plans. The numbers describe a chart its publisher owns, and every file carries a license note.
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Questions people ask
How far did Anthropic's "Firefox Security Vulnerabilities" chart travel?
3,239,755 views, 14,777 likes, 1,347 reposts and 2,385 saves on X, read Oct 10, 2026. A normal post from @AnthropicAI gets about 603.6K views.
What kind of chart is it?
A stacked bar chart. Monthly Firefox security vulnerabilities by severity with February spike.
Can I use Anthropic's chart?
Use the format, not the picture. The chart, logo and design belong to Anthropic. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.