Countdown Timer Firefox

Download Countdown Timer

Download Countdown Timer (current and past versions) for Firefox
Latest Version: 2.1.1 Updated: 23 days ago

Ready to install?

Countdown Timer is available to install from Firefox Add-ons Store and for download from this page.
View source code
296
Daily users
3.3
8 ratings
0
Total downloads

Available versions

You can find the current and older versions of Countdown Timer 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
2.1.1XPI · ZIP · Source code14.12KB02026-05-28
2.1.0XPI · ZIP · Source code13.96KB02026-05-14
2.0.6XPI · ZIP · Source code13.19KB02026-05-10
2.0.4Paid users only13.00KB02026-02-18
2.0.3Paid users only13.01KB02026-02-16
2.0.1Paid users only13.00KB02024-07-14
2.0.0Paid users only12.97KB02023-08-01
1.5Paid users only11.80KB02023-06-28
1.4Paid users only11.76KB02023-04-02
1.3Paid users only11.77KB02023-04-01
1.2Paid users only10.88KB02023-02-18
1.1Paid users only10.20KB02023-02-06
2.1.1 14.12KB
2026-05-28 · 0 downloads
XPI ZIP Source code
2.1.0 13.96KB
2026-05-14 · 0 downloads
XPI ZIP Source code
2.0.6 13.19KB
2026-05-10 · 0 downloads
XPI ZIP Source code
2.0.4 13.00KB
2026-02-18 · 0 downloads
Paid users only
2.0.3 13.01KB
2026-02-16 · 0 downloads
Paid users only
2.0.1 13.00KB
2024-07-14 · 0 downloads
Paid users only
2.0.0 12.97KB
2023-08-01 · 0 downloads
Paid users only
1.5 11.80KB
2023-06-28 · 0 downloads
Paid users only
1.4 11.76KB
2023-04-02 · 0 downloads
Paid users only
1.3 11.77KB
2023-04-01 · 0 downloads
Paid users only
1.2 10.88KB
2023-02-18 · 0 downloads
Paid users only
1.1 10.20KB
2023-02-06 · 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 Countdown Timer ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the Countdown Timer ZIP file from step 1. Countdown Timer is now installed on your browser.

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