Pesticide

This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.

Pesticide Add-on for Firefox

Pesticide is a lightweight Firefox extension that enhances your web development and design workflow by injecting a helpful CSS outline into any webpage. With Pesticide, you can visually discern the placement of elements on a page, making it easier to troubleshoot layouts and styles. The best part? It requires no special permissions—just install it and start using it immediately.

Whether you're a developer, designer, or just a curious user, Pesticide offers a simple yet powerful way to visualize structures on the web. If you find the extension helpful, consider leaving a review to share your experience!

Manifest V2
By:
Six
Daily users:
2,529+ -70
Version:
1.1 (Last updated: 2022-04-09)
Version code:
5389352
Creation date:
2022-04-08
Permissions:
  • activeTab
Size:
26.91K
Full description:
See detailed description
Updated:
12 hours ago

User reviews

by Ricardo Valtierra, 2025-04-24

by MoFadel26, 2024-07-29

Very useful when debugging css. Thank you very much Six!
by sexy_pikachu, 2024-05-29
View all user reviews

Extension safety

Risk impact

Pesticide does not require any sensitive permissions.

Risk impact analysis details
    Risk likelihood

    Pesticide has earned a fairly good reputation and likely can be trusted.

    Risk likelihood analysis details
    • High This extension has low user count. Unpopular extensions may not be stable or safe.
    • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
    • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
    • Good **** ********* *** **** **** *******
    Upgrade to see full risk analysis details

    Similar add-ons

    Here are some Firefox add-ons that are similar to Pesticide:

    Pesticide (without hover bar) Pesticide (without hover bar)
    Wasawin
    8 0.00 (0)
    Pesticide for Firefox Pesticide for Firefox
    Xenfo
    261 5.00 (4)
    Pesticide, for Firefox Pesticide, for Firefox
    Daniel Oshiro
    2K 3.67 (15)
    Bugify Bugify
    Kumar Ashish Ranjan
    1 0.00 (0)
    PESTKILL Pest Control Products Reviews PESTKILL Pest Control Products Reviews
    Jeremy Labelle
    1 0.00 (0)
    Toggle CSS outline Toggle CSS outline
    theodejager
    57 5.00 (1)
    Debug CSS Debug CSS
    Pranay Joshi
    1K 4.75 (12)
    WebsiteInjector WebsiteInjector
    Alexander Galitskiy
    2 5.00 (1)