PulseGatePost-LLM software, agents & workflows market (since 2022)
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Last update

 

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7-day average

Indexed today: 393

PulseGate

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JJJirka Justra / firewall logo

Jirka Justra / firewall

gitlab.com·Infrastructure

firewall is an open-source Firefox extension that enables users to filter website requests and alter HTTP headers. It is designed for developers and advanced users who need fine-grained control over browser network activity. The extension is MIT-licensed and available on GitLab.

Open SourceOpen Source
WebEmbeddableCloud-managed
J
Jirka Justra / firewall preview
Visit gitlab.com↗

Overview

5 features

Jirka Justra / firewall sits in PulseGate's Browser DevTools & extensions category. Allowing developers and advanced users to filter web requests and modify headers in Firefox. It is built as an open-source project for developers and power users. Jirka Justra / firewall is open source under the Open Source license. The product ships for the web and embeddable surfaces.

It is developed by Jirka Justra, and the product first shipped in 2017. PulseGate's similarity index finds few close equivalents — Jirka Justra / firewall occupies a relatively distinct niche. Key capabilities include request filtering, header alteration, and firefox integration.

  • ✓Request filtering
  • ✓Header alteration
  • ✓Firefox integration
  • ✓Open source
  • ✓Custom rules

Tags

request-filteringheader-modificationfirefox-addon

AI capabilities

Weights: Open

Built with & integrations

Framework
rails
Hosting
cloudflare
Auth
supabase_auth
AI providers
openai
Runs on
BrowserEmbeddableCloud-managed

Trust & compliance

LicenseOpen Source
Verified signals
✓ HTTPS✓ Open Source✓ Free tier✓ Store-verified publisher

Recent events

Latest indexed changes and source events

  1. IndexedJun 25, 7:36 PM

    gitlab.com discovered by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

Frequently asked questions about Jirka Justra / firewall

What does Jirka Justra / firewall do?
Allowing developers and advanced users to filter web requests and modify headers in Firefox. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Jirka Justra / firewall for?
Jirka Justra / firewall is an open-source project built for developers and power users.
Is Jirka Justra / firewall free?
Yes — Jirka Justra / firewall is open source under the Open Source license and free to use.
What platforms does Jirka Justra / firewall run on?
Jirka Justra / firewall runs on the web and embeddable surfaces.
Is Jirka Justra / firewall still maintained?
PulseGate's automated liveness checks currently classify Jirka Justra / firewall as active.
What are alternatives to Jirka Justra / firewall?
Similar tools tracked by PulseGate include Jirka Justra / search-searx, Jirka Justra / yandex-image-search-yandex.com, and Jirka Justra / Youtube auto-reporter.Jirka Justra / search-searxJirka Justra / yandex-image-search-yandex.comJirka Justra / Youtube auto-reporter
Who makes Jirka Justra / firewall?
Jirka Justra / firewall is developed by Jirka Justra.
When did Jirka Justra / firewall launch?
Jirka Justra / firewall first shipped in 2017.

At a glance

Pricing
Open Source
Platforms
Web · Api
Languages
English
License
Open Source
First seen
Apr 2, 2023
Activity
🟢 Active
Status
🟢 Active
Built for
developers and power users
Model
Open source
Solves
Allowing developers and advanced users to filter web requests and modify headers in Firefox.

Developer

Jirka Justra

PulseGate index

Confidence
High · 95
Indexed
Jun 25, 2026
Lifecycle
Alive
Activity
Active
First seen
Apr 2023
Last seen
2w ago
Freshness
Unknown
Identity audit (9)
Entity ID
cmqtwo6va0arkstorpmtxf4m6
Slug
firewall-gitlab-com
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jun 25, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jun 25, 2026
Canonical URL
https://gitlab.com/jjustra/firewall

Similar apps

Other apps tracked under the same category.

  • Jirka Justra / search-searx
    gitlab.com
  • Jirka Justra / yandex-image-search-yandex.com
    gitlab.com
  • Jirka Justra / Youtube auto-reporter
    gitlab.com
  • Jirka Justra / search-fastshare
    gitlab.com
  • Jan Pecha / WebFilter
    gitlab.com
  • Jirka Justra / search-odysee
    gitlab.com