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I have two programs installed on my PC, both named "Mozilla Maintenace Service", one vers 52.9.0 the other vers 63.0a1 and I don't know why.

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  • Last reply by Shadow110

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This would appear to be a redundancy but since I'm not even totally clear about what exactly Mozilla Maintenance Service does (is a program specific maintenance program where a different program would accompany say Firefox as well as Thunderbird? If so this makes a little bit more sense). Any clarity on the subject would be much appreciated. Thanks.

This would appear to be a redundancy but since I'm not even totally clear about what exactly Mozilla Maintenance Service does (is a program specific maintenance program where a different program would accompany say Firefox as well as Thunderbird? If so this makes a little bit more sense). Any clarity on the subject would be much appreciated. Thanks.

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Maybe the 52.9.0 version is a 32-bit version because you have 64-bit Firefox 61.0.1.

The Mozilla Maintenance Service is used to download and install updates in the background without having permission issues (UAC pop-up) You once allow this service then you install MMS and then it can do its job in the background.

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Actually the version isn't 61.0.1, its 63.0a1. Any idea what I'm to make of that if anything?

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Hi and ya why are you running a Alpha version ? It may have installed it's own Maintenance Service I tend to leave those builds alone as they Crash and Burn. Suppose to report those to bugzilla when do flame out.

Your 2 versions may have become intertwined now unless installed on separate partions using custom install.

You may want to do this with your ver 52.9.0 which is a update behind :

Full Version Installer

Developer Edition is another matter as it is always in Beta. It also has a Compatibility Mode that comes up after installing it so can run 2 versions.

Yes my understanding is that Thunderbird can make a Maintenance Service.

To be sure maybe someone else knows.

Can always check with them : https://support.mozilla.org/en-US/products/thunderbird Then decide what your going to do.

Do do the backups though asap.

Modified by Shadow110