Some pages hide a button, stop drawing halfway or open a new tab on every tap. An ad blocker sits between the page and your screen, so it is one of the first things to rule out. The browser basics are on the phone browser hub, and this page covers the blocking layers on iPhone and Android.
Ad blocker layers on a phone browser
The four layers below are separate settings, each with its own page in the vendor’s help.
Layer
Where
What the vendor says it blocks
Chrome intrusive-ads filter
Android: More, Settings, Site settings, Intrusive ads
Ads on sites with too many ads, flashing or autoplaying ads, or ad walls
Chrome pop-up blocker
Android: Site settings, Pop-ups and redirects; iPhone: Content Settings, Block Pop-ups
Pop-ups from automatically showing up
Safari pop-up blocker
Settings, Apps, Safari, Block Pop-ups
Pop-ups
Safari content blockers
Settings, Apps, Safari, Extensions
Cookies, images, resources, pop-ups and other content
Google’s page says Chrome’s filter removes ads on sites that violate the Better Ads Standards, and that an “Intrusive ads blocked” message appears when it acts. That makes it a narrow filter, not a general blocker.
Five things a content blocker can remove
Apple’s page describes content blockers as tools that let Safari block these five kinds of content:
Cookies
Images
Resources
Pop-ups
Other content
You choose the blocker; Apple says to tap Settings, Apps, Safari, Extensions, and tap to turn on a listed content blocker. More than one can run at once.
Why an ad blocker can break a game page
A game page is built from images and resources, the same kinds Apple’s list names. If a blocker removes one the page needs, the result is a gap or a stall, not an error number.
Problem
A game page stalls or hides a button only on one browser
Fix
Switch the blocker off for that page, or open the page in Chrome’s Incognito mode, where Google’s loading-errors help tells you to test first. If it draws normally, the cause was stored data or a blocker, and steps to clear cache on iPhone apply next.
Pop ups: block them or allow one site
Google’s Chrome page says Chrome blocks pop-ups by default and marks the address bar “Pop-up blocked”. On Android, tap More, Settings, Site settings, Pop-ups and redirects. On iPhone, tap More, Settings, Content Settings, Block Pop-ups. Not all pop-ups are ads or spam; some legitimate websites show web content in a pop-up window, so a blocked window can hide a step the page needs.
Problem
A page needs a pop-up window to finish and none appears
Fix
Go to the page where pop-ups are blocked. At the bottom of the screen, tap Always show.
Allow one site without switching the blocker off
For Chrome on Android, Google’s page puts the Intrusive ads label under Site settings, in the Content group, and says it lets you allow any site to show any ad. Read the label and its on or off state on your own screen before you change it. Safari’s third-party blockers keep their allow lists inside the blocker; Apple’s page says to contact the blocker’s developer for help.
When pop ups will not stop
Google says pop-up ads and new tabs that won’t go away can mean unwanted software or malware. Its Android steps start with a Safe mode restart and removing recently downloaded apps one by one. If a page also lags, a ping test on your phone connection tells you whether the delay is the network.
FAQ
Does Chrome have a built-in ad blocker?
Google's Chrome help says Chrome removes ads on sites with poor ad experiences, such as too many ads, flashing or autoplaying ads, and ad walls, and shows an Intrusive ads blocked message. It is a filter for those ads, not a general blocker.
How do I allow pop-ups for one site in Chrome?
Google's page says to go to the page where pop-ups are blocked and tap Always show, at the bottom of the screen.
Why does a page still show pop-ups after I block them?
Google lists two causes: notifications you subscribed to earlier, and malware on the phone. Both have their own steps on Google's help pages.
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