Checker Plus for Gmail™ Firefox

Download Checker Plus for Gmail™

By: Jason Savard Add-on
Download Checker Plus for Gmail™ (current and past versions) for Firefox
Latest Version: 36.2 Updated: 13 days ago

Ready to install?

Checker Plus for Gmail™ is available to install from Firefox Add-ons Store and for download from this page.
View source code
36,544
Daily users
4.3
615 ratings
17
Total downloads

Available versions

You can find the current and older versions of Checker Plus for Gmail™ 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
36.2XPI · ZIP · Source code1.43MB02026-07-02
36.1.5XPI · ZIP · Source code1.43MB02026-06-16
36.0XPI · ZIP · Source code1.44MB42026-05-12
35.0.1.1Paid users only1.44MB02026-04-06
33.1.3.1Paid users only2.03MB12025-10-24
33.1.3Paid users only2.03MB12025-09-11
33.0.6Paid users only2.03MB02025-08-04
33.0.4Paid users only2.03MB02025-07-25
32.0.3Paid users only2.02MB02025-05-27
31.0.5Paid users only2.02MB02025-04-23
31.0.4Paid users only2.02MB02025-03-28
30.2.4Paid users only2.02MB02025-02-14
30.2.3Paid users only2.02MB02025-02-05
30.1.1Paid users only2.02MB02025-01-22
30.0.1Paid users only2.02MB02024-12-13
29.0.8Paid users only2.02MB02024-11-19
29.0.3.1Paid users only2.02MB02024-09-23
29.0.1.1Paid users only2.01MB02024-09-16
29.0.1Paid users only2.01MB02024-09-10
28.0.3Paid users only2.19MB02024-08-06
28.0.2Paid users only2.19MB12024-07-18
28.0Paid users only2.19MB12024-07-11
26.0.2Paid users only2.19MB12024-04-16
26.0.1Paid users only2.19MB02024-04-03
25.0.11Paid users only2.19MB12024-03-06
25.0.10Paid users only2.19MB12024-03-04
25.0.8.1Paid users only2.19MB12024-02-19
24.4.2Paid users only2.17MB32023-12-04
24.3.4Paid users only2.16MB22023-10-27
24.3Paid users only2.16MB02023-10-11
24.2.1Paid users only2.16MB02023-08-24
24.1.2Paid users only2.16MB02023-08-10
24.1.1.1Paid users only2.16MB02023-07-06
24.0.4Paid users only2.16MB02023-05-23
23.6.0.1Paid users only2.10MB02023-03-07
23.5Paid users only2.09MB02023-01-31
23.4Paid users only2.09MB02022-12-08
23.3.0.1Paid users only2.07MB02022-10-25
23.3Paid users only2.07MB02022-10-17
23.2Paid users only2.07MB02022-09-01
23.1.1Paid users only2.07MB02022-06-28
36.2 1.43MB
2026-07-02 · 0 downloads
XPI ZIP Source code
36.1.5 1.43MB
2026-06-16 · 0 downloads
XPI ZIP Source code
36.0 1.44MB
2026-05-12 · 4 downloads
XPI ZIP Source code
35.0.1.1 1.44MB
2026-04-06 · 0 downloads
Paid users only
33.1.3.1 2.03MB
2025-10-24 · 1 downloads
Paid users only
33.1.3 2.03MB
2025-09-11 · 1 downloads
Paid users only
33.0.6 2.03MB
2025-08-04 · 0 downloads
Paid users only
33.0.4 2.03MB
2025-07-25 · 0 downloads
Paid users only
32.0.3 2.02MB
2025-05-27 · 0 downloads
Paid users only
31.0.5 2.02MB
2025-04-23 · 0 downloads
Paid users only
31.0.4 2.02MB
2025-03-28 · 0 downloads
Paid users only
30.2.4 2.02MB
2025-02-14 · 0 downloads
Paid users only
30.2.3 2.02MB
2025-02-05 · 0 downloads
Paid users only
30.1.1 2.02MB
2025-01-22 · 0 downloads
Paid users only
30.0.1 2.02MB
2024-12-13 · 0 downloads
Paid users only
29.0.8 2.02MB
2024-11-19 · 0 downloads
Paid users only
29.0.3.1 2.02MB
2024-09-23 · 0 downloads
Paid users only
29.0.1.1 2.01MB
2024-09-16 · 0 downloads
Paid users only
29.0.1 2.01MB
2024-09-10 · 0 downloads
Paid users only
28.0.3 2.19MB
2024-08-06 · 0 downloads
Paid users only
28.0.2 2.19MB
2024-07-18 · 1 downloads
Paid users only
28.0 2.19MB
2024-07-11 · 1 downloads
Paid users only
26.0.2 2.19MB
2024-04-16 · 1 downloads
Paid users only
26.0.1 2.19MB
2024-04-03 · 0 downloads
Paid users only
25.0.11 2.19MB
2024-03-06 · 1 downloads
Paid users only
25.0.10 2.19MB
2024-03-04 · 1 downloads
Paid users only
25.0.8.1 2.19MB
2024-02-19 · 1 downloads
Paid users only
24.4.2 2.17MB
2023-12-04 · 3 downloads
Paid users only
24.3.4 2.16MB
2023-10-27 · 2 downloads
Paid users only
24.3 2.16MB
2023-10-11 · 0 downloads
Paid users only
24.2.1 2.16MB
2023-08-24 · 0 downloads
Paid users only
24.1.2 2.16MB
2023-08-10 · 0 downloads
Paid users only
24.1.1.1 2.16MB
2023-07-06 · 0 downloads
Paid users only
24.0.4 2.16MB
2023-05-23 · 0 downloads
Paid users only
23.6.0.1 2.10MB
2023-03-07 · 0 downloads
Paid users only
23.5 2.09MB
2023-01-31 · 0 downloads
Paid users only
23.4 2.09MB
2022-12-08 · 0 downloads
Paid users only
23.3.0.1 2.07MB
2022-10-25 · 0 downloads
Paid users only
23.3 2.07MB
2022-10-17 · 0 downloads
Paid users only
23.2 2.07MB
2022-09-01 · 0 downloads
Paid users only
23.1.1 2.07MB
2022-06-28 · 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 Checker Plus for Gmail™ ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the Checker Plus for Gmail™ ZIP file from step 1. Checker Plus for Gmail™ is now installed on your browser.

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