Why Does Firefox Keep Reinstalling Every Friday?

November 8, 2025 3 answers
Asked by MysteriousWanderer123
I've been dealing with an annoying issue where a new Firefox shortcut shows up on my desktop every Friday. I don't even use Firefox! I checked and found that Firefox and AdBlock Plus for Internet Explorer were automatically installed. I uninstalled them, thinking that would solve it, but the same thing happens the following Friday. I've scanned my computer with Malware Bytes, and it didn't find anything. I primarily use Edge and have Chrome as a backup, but this issue keeps recurring. Has anyone else experienced this? What can I do to stop it?

Answers

TaskExpert
You should definitely check the Windows Task Scheduler. There could be a task set up that installs Firefox on a schedule without you even realizing it. Itโ€™s worth a look!
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ConcernedTechie
Consider the possibility of adware instead of outright malware. It might be worth doing a virus scan just in case, and if that doesn't help, backing up your files for a clean installation of Windows could be a last resort. Also, for a better browsing experience, Iโ€™d recommend using browsers like Brave that have adblockers built in, or considering other options like uBlock Origin or AdGuard.

FrustratedUser: I donโ€™t use AdBlock Plus; thatโ€™s part of the problem! It keeps getting installed without my permission. Also, Iโ€™m careful about what I click on and install.

SkepticalUser: I totally get that. Itโ€™s frustrating when things install themselves without any approval. Maybe thereโ€™s something sneaky going on behind the scenes.

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SneakyTechie42
It sounds like there might be another program youโ€™re installing on Fridays that triggers the installation of Firefox. I havenโ€™t heard of any malware that specifically installs Firefox on a schedule, so maybe itโ€™s something else? Think back on what you might be running or installing weekly.

UserWhoObserves: That makes sense! If you're running a routine task every Friday, it could be linked to that. It's a good idea to check what programs youโ€™re using at that time.

ForgetfulUser99: Yeah, but itโ€™s strange that itโ€™s consistently every Friday. You might want to dive into your scheduled tasks just to be sure.

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