UiPath Documentation
studio
2024.10
false

Studio user guide

Last updated May 20, 2026

Extension on Firefox versions older than 65.0

Description

Mozilla introduced an extension signing verification algorithm in Firefox, which disables add-ons for Firefox version 65.0 and lower. As such, if you install the UiPath Extension for Firefox on the browser version 65.0 or lower, the following error message is displayed:

This add-on could not be installed because it appears to be corrupt.

Solution 1

Update Firefox to version v66.0.4 or higher.

Solution 2

Starting with Studio 2020.8, the Firefox extension is newly signed and it should be properly installed on older versions of the Firefox browser.

  • Description
  • Solution 1
  • Solution 2

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