OptMeowt Firefox

Download OptMeowt

By: privacy-tech-lab Add-on
Download OptMeowt (current and past versions) for Firefox
Latest Version: 6.3.0 Updated: 10 days ago

Ready to install?

OptMeowt is available to install from Firefox Add-ons Store and for download from this page.
View source code
178
Daily users
4.1
9 ratings
1
Total downloads

Available versions

You can find the current and older versions of OptMeowt 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
6.3.0XPI · ZIP · Source code3.76MB02026-08-19
6.2.0XPI · ZIP · Source code3.71MB02026-06-07
6.1.0XPI · ZIP · Source code3.70MB02026-04-30
6.0.0Paid users only3.70MB02026-03-19
5.2.0Paid users only3.58MB02025-11-21
5.1.2Paid users only3.61MB02025-04-17
5.1.1Paid users only3.59MB02025-02-12
5.0.1Paid users only3.59MB12024-05-24
5.0.0Paid users only3.59MB02024-05-23
4.3.1Paid users only3.03MB02024-01-19
4.3.0Paid users only3.03MB02023-11-19
4.2.0Paid users only3.03MB02023-03-25
4.0.1Paid users only2.65MB02022-07-27
6.3.0 3.76MB
2026-08-19 · 0 downloads
XPI ZIP Source code
6.2.0 3.71MB
2026-06-07 · 0 downloads
XPI ZIP Source code
6.1.0 3.70MB
2026-04-30 · 0 downloads
XPI ZIP Source code
6.0.0 3.70MB
2026-03-19 · 0 downloads
Paid users only
5.2.0 3.58MB
2025-11-21 · 0 downloads
Paid users only
5.1.2 3.61MB
2025-04-17 · 0 downloads
Paid users only
5.1.1 3.59MB
2025-02-12 · 0 downloads
Paid users only
5.0.1 3.59MB
2024-05-24 · 1 downloads
Paid users only
5.0.0 3.59MB
2024-05-23 · 0 downloads
Paid users only
4.3.1 3.03MB
2024-01-19 · 0 downloads
Paid users only
4.3.0 3.03MB
2023-11-19 · 0 downloads
Paid users only
4.2.0 3.03MB
2023-03-25 · 0 downloads
Paid users only
4.0.1 2.65MB
2022-07-27 · 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 OptMeowt ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the OptMeowt ZIP file from step 1. OptMeowt is now installed on your browser.

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