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Couldn’t load XPCOM issue

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June 15, 2022 - 10:40am
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seatsurf
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Couldn’t load XPCOM issue

Second time after updating all portableapps , firefox did not start , giving just an error message:

Couldn’t load XPCOM

It happened first time with 101.0 and today with 101.0.1

What I found out to make it running again:

downloaded FirefoxPortable_101.0.1_English.paf.exe from https://portableapps.com/apps/internet/firefox_portable
extracted with 7-zip
copied all the folder and overwritten the original in portableapps folder

Firefox started again and all my bookmarks and plugins are still with me

Question: what to do now , so I will not have to repeat this operation for the third time after next update?

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June 15, 2022 - 11:53am
John T. Haller
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Scan for Errors and Viruses

This will happen to a local or portable install of Firefox or Thunderbird when the extraction of files causing corruption or can't complete due to locked files. It's usually a result of drive corruption but can also be caused by viruses, etc. Please scan your drive for errors (logical and physical) and run a full antivirus scan on your system.

If this does happen to you, you don't need 7-Zip. You can perform a standalone upgrade to reinstall: https://portableapps.com/support/portable_app#upgrading

Sometimes, the impossible can become possible, if you're awesome!

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June 20, 2022 - 1:12pm
(Reply to #2)
seatsurf
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Scanned with ClamWin portable

Scanned with ClamWin portable and it discovered viruses in some portable apps and in PortableAppsPlatform.exe itself!
Is that possible?

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June 20, 2022 - 2:01pm
(Reply to #3)
John T. Haller
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Infections, False Positives

Any app you're running on your local PC can get infected. That said, ClamWin has a higher false positive rate than most Windows antivirus. You can double check any EXEs that show as infected by uploading them to VirusTotal. That's how we scan every file in 70+ antivirus engines before release. Most files will have a couple false positives. If something is detected in 10+ antivirus engines and it's not a generic warning (PUA/Potentially Unwanted Program, Encryption Service, Mining Utility, etc) then it's probably infected.

If Windows Defender is disabled on your PC, I highly recommend re-enabling it. If you're using an older/unsupported version of Windows, I recommend installing Microsoft Security Essentials.

Sometimes, the impossible can become possible, if you're awesome!

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June 21, 2022 - 5:27am
(Reply to #4)
seatsurf
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Thank you John for detailed

Thank you John for detailed answers.

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