Snapsize Firefox

Download Snapsize

By: Reioken Add-on
Download Snapsize (current and past versions) for Firefox
xHeader
Modify request and response headers. No ads, no malware.
Latest Version: 2.0.0 Updated: 2 months ago

Ready to install?

Snapsize is available to install from Firefox Add-ons Store and for download from this page.
View source code
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Available versions

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

As a free user, you can download up to 3 latest versions.
Unlock older versions with Pro
VersionDownloadSizeDownload countTimestamp
2.0.0XPI · ZIP · Source code44.62KB02026-09-24
2.0.0 44.62KB
2026-09-24 · 0 downloads

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

Best Snapsize Alternatives

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