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Firefox and PAD not working together.

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Posted on by IndranilSarker

Hi all,

Today is 16-Aug-2021 and it is 04:50 AM. I have an issue that has come up in the last 7 days. I have a PAD program that I run weekly. Last week, everything was fine. This week, I found that the program is failing in 1 particular line.

This problem is being experienced ONLY in Firefox. Something in Firefox is breaking the code. 😞

Would be interested in hearing from others who have faced the same problem.

I am putting all the details down here.

Machine Specification

Device name XXXX
Processor Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz 1.80 GHz
Installed RAM 8.00 GB (7.83 GB usable)
Device ID 76DA61B2-AB20-4AD2-8966-27BBB457CECD
Product ID 00327-35888-67258-AAOEM
System type 64-bit operating system, x64-based processor
Pen and touch Pen and touch support with 10 touch points

Windows Specification

Edition Windows 10 Home Single Language
Version 21H1
Installed on ‎02-‎08-‎2020
OS build 19043.1165
Experience Windows Feature Experience Pack 120.2212.3530.0

Firefox 91.0 64 Bit

Code that fails consistently

I have anonymized the Url !

WebAutomation.LaunchFirefox Url: $'''ABCDE''' WindowState: WebAutomation.BrowserWindowState.Maximized ClearCache: False ClearCookies: False Timeout: 60 BrowserInstance=> XXX

Categories:

Power Automate Desktop

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Pstork1 69,585 Most Valuable Professional on at

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It should be mentioned that the prerequisites for Windows Automate Desktop include the following:

The Microsoft Edge (version 80 or later) or Google Chrome browser. Power Automate Desktop prerequisites & limitations - Power Automate | Microsoft Docs

So its not surprising that there might be compatibility issues with Firefox. I would stick to using Edge or Chrome for Web Automation.

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IndranilSarker 5 on at

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Thank you for this.

I have moved my most critical Flow from Firefox to Edge. That has helped me.

Now I have to move a whole set of other Flows from Firefox to Edge, which is going to be painful but I guess I have to do it !! 🙂

When I look for the Root Cause as to how I got into this mess, I can only say it was because of my ego. Since I am a fan of Firefox, familiar with it and heavily invested into it, I went ahead and used Firefox in PAD. I should have taken cognizance of the fact that PAD recommended Edge and go down that path !!

Thanks again.

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