NMO-Helper Firefox

Download NMO-Helper

By: Mikhail Add-on
Download NMO-Helper (current and past versions) for Firefox
Latest Version: 4.3.0 Updated: a month ago

Ready to install?

NMO-Helper 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 NMO-Helper 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
4.3.0XPI · ZIP · Source code964.11KB02026-07-23
4.2.0XPI · ZIP · Source code938.11KB02026-05-30
4.1.1XPI · ZIP · Source code930.22KB02026-05-23
4.1.0Paid users only1.05MB02026-05-17
4.0.0Paid users only341.48KB02026-05-02
3.1.5Paid users only335.17KB02026-04-24
3.1.4Paid users only335.15KB02026-04-23
3.1.2Paid users only336.30KB02026-04-22
3.1.1Paid users only336.83KB02026-04-20
3.0.1Paid users only332.17KB02026-04-18
4.3.0 964.11KB
2026-07-23 · 0 downloads
XPI ZIP Source code
4.2.0 938.11KB
2026-05-30 · 0 downloads
XPI ZIP Source code
4.1.1 930.22KB
2026-05-23 · 0 downloads
XPI ZIP Source code
4.1.0 1.05MB
2026-05-17 · 0 downloads
Paid users only
4.0.0 341.48KB
2026-05-02 · 0 downloads
Paid users only
3.1.5 335.17KB
2026-04-24 · 0 downloads
Paid users only
3.1.4 335.15KB
2026-04-23 · 0 downloads
Paid users only
3.1.2 336.30KB
2026-04-22 · 0 downloads
Paid users only
3.1.1 336.83KB
2026-04-20 · 0 downloads
Paid users only
3.0.1 332.17KB
2026-04-18 · 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 NMO-Helper ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the NMO-Helper ZIP file from step 1. NMO-Helper is now installed on your browser.

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