CSS Insight Firefox

Download CSS Insight

Download CSS Insight (current and past versions) for Firefox
Latest Version: 1.20.1 Updated: a year ago

Ready to install?

CSS Insight is available to install from Firefox Add-ons Store and for download from this page.
View source code
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Total downloads

Available versions

You can find the current and older versions of CSS Insight here. You can download the archived versions or inspect their source codes.

As a free user, you can download up to 3 latest versions.
Upgrade to download older versions
VersionDownloadSizeDownload countTimestamp
1.20.1XPI · ZIP · Source code554.62KB02025-08-08
1.19.9XPI · ZIP · Source code551.43KB02025-08-03
1.19.8XPI · ZIP · Source code551.39KB02025-06-25
1.19.7Paid users only551.39KB02025-06-17
1.19.6Paid users only551.33KB02025-06-07
1.19.5Paid users only551.32KB02025-06-05
1.19.4Paid users only551.32KB02025-06-04
1.19.3Paid users only551.13KB02025-05-31
1.19.2Paid users only550.83KB02025-05-30
1.19.1Paid users only550.50KB02025-05-24
1.19.0Paid users only550.45KB02025-05-23
1.18.5Paid users only550.22KB02025-05-08
1.18.4Paid users only550.07KB02025-05-05
1.18.3Paid users only550.05KB02025-05-04
1.18.2Paid users only550.04KB02025-05-02
1.18.1Paid users only549.59KB02025-04-27
1.17.0Paid users only535.40KB02025-04-23
1.16.0Paid users only535.23KB02025-04-07
1.15.2Paid users only535.04KB02025-04-06
1.14.0Paid users only534.97KB02025-04-03
1.13.13Paid users only534.60KB02025-03-29
1.13.12Paid users only534.57KB02025-01-17
1.20.1 554.62KB
2025-08-08 · 0 downloads
XPI ZIP Source code
1.19.9 551.43KB
2025-08-03 · 0 downloads
XPI ZIP Source code
1.19.8 551.39KB
2025-06-25 · 0 downloads
XPI ZIP Source code
1.19.7 551.39KB
2025-06-17 · 0 downloads
Paid users only
1.19.6 551.33KB
2025-06-07 · 0 downloads
Paid users only
1.19.5 551.32KB
2025-06-05 · 0 downloads
Paid users only
1.19.4 551.32KB
2025-06-04 · 0 downloads
Paid users only
1.19.3 551.13KB
2025-05-31 · 0 downloads
Paid users only
1.19.2 550.83KB
2025-05-30 · 0 downloads
Paid users only
1.19.1 550.50KB
2025-05-24 · 0 downloads
Paid users only
1.19.0 550.45KB
2025-05-23 · 0 downloads
Paid users only
1.18.5 550.22KB
2025-05-08 · 0 downloads
Paid users only
1.18.4 550.07KB
2025-05-05 · 0 downloads
Paid users only
1.18.3 550.05KB
2025-05-04 · 0 downloads
Paid users only
1.18.2 550.04KB
2025-05-02 · 0 downloads
Paid users only
1.18.1 549.59KB
2025-04-27 · 0 downloads
Paid users only
1.17.0 535.40KB
2025-04-23 · 0 downloads
Paid users only
1.16.0 535.23KB
2025-04-07 · 0 downloads
Paid users only
1.15.2 535.04KB
2025-04-06 · 0 downloads
Paid users only
1.14.0 534.97KB
2025-04-03 · 0 downloads
Paid users only
1.13.13 534.60KB
2025-03-29 · 0 downloads
Paid users only
1.13.12 534.57KB
2025-01-17 · 0 downloads
Paid users only

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.
  • Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  • Download the CSS Insight ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the CSS Insight ZIP file from step 1. CSS Insight is now installed on your browser.

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