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Potential Harmfull site visited, Unsure of infection

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Hello, I had accidentally opened a shortened url link from my messages in firefox android, but I received a deceptive website warning in a red background page either from google or firefox, before I could read the whole message I panic closed the app, disconnected from the internet, deleted all my firefox data (history,cache,etc,.). I am unsure if my android device is infected in any way, Am I right in saying the harmful page never actually opened because I received a warning before it could? does that mean my device is safe? will running a malwarebytes android scan suffice? or do I need to factory reset my device? Thank you.

Hello, I had accidentally opened a shortened url link from my messages in firefox android, but I received a deceptive website warning in a red background page either from google or firefox, before I could read the whole message I panic closed the app, disconnected from the internet, deleted all my firefox data (history,cache,etc,.). I am unsure if my android device is infected in any way, Am I right in saying the harmful page never actually opened because I received a warning before it could? does that mean my device is safe? will running a malwarebytes android scan suffice? or do I need to factory reset my device? Thank you.

Chosen solution

aakarsh.ava said

if a link I clicked is flagged by firefox I would receive a warning page now does this mean the connection to the harmful linked site hasn't actually been made and that firefox has blocked it with a warning page?

Correct. See: How does built-in Phishing and Malware Protection work?

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Hi

Difficult to say without having seen the message or know whch site you were trying to open, but I believe you have done the right thing and should not need to factory reset your device.

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Thank you, it was probably a phishing site and I think I'm safe, but I would like to understand how these deceptive site warnings work, if a link I clicked is flagged by firefox I would receive a warning page now does this mean the connection to the harmful linked site hasn't actually been made and that firefox has blocked it with a warning page? this is would be safer as the harmful site could not have had any chance inject/install malware etc,. thank you

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Chosen Solution

aakarsh.ava said

if a link I clicked is flagged by firefox I would receive a warning page now does this mean the connection to the harmful linked site hasn't actually been made and that firefox has blocked it with a warning page?

Correct. See: How does built-in Phishing and Malware Protection work?