mail.com MailCheck Firefox

Download mail.com MailCheck

Download mail.com MailCheck (current and past versions) for Firefox
Latest Version: 8.0.20 Updated: 19 days ago

Ready to install?

mail.com MailCheck is available to install from Firefox Add-ons Store and for download from this page.
View source code
1,170
Daily users
2.7
82 ratings
1
Total downloads

Available versions

You can find the current and older versions of mail.com MailCheck 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
8.0.20XPI · ZIP · Source code2.28MB02026-06-25
8.0.18XPI · ZIP · Source code2.58MB02025-12-10
6.5.5XPI · ZIP · Source code2.32MB12023-11-20
6.5.4Paid users only2.32MB02023-11-06
6.4.0Paid users only2.31MB02023-07-20
6.2.3Paid users only2.27MB02023-03-29
6.2.2Paid users only2.27MB02023-02-13
6.2.0Paid users only2.27MB02022-12-21
6.1.1Paid users only2.58MB02022-05-20
8.0.20 2.28MB
2026-06-25 · 0 downloads
XPI ZIP Source code
8.0.18 2.58MB
2025-12-10 · 0 downloads
XPI ZIP Source code
6.5.5 2.32MB
2023-11-20 · 1 downloads
XPI ZIP Source code
6.5.4 2.32MB
2023-11-06 · 0 downloads
Paid users only
6.4.0 2.31MB
2023-07-20 · 0 downloads
Paid users only
6.2.3 2.27MB
2023-03-29 · 0 downloads
Paid users only
6.2.2 2.27MB
2023-02-13 · 0 downloads
Paid users only
6.2.0 2.27MB
2022-12-21 · 0 downloads
Paid users only
6.1.1 2.58MB
2022-05-20 · 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 mail.com MailCheck ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the mail.com MailCheck ZIP file from step 1. mail.com MailCheck is now installed on your browser.

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