this post was submitted on 22 Jun 2026
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Regardless of any browser, consider that there's probably a half dozen background programs using the internet connection as well. You'll want to install something like a firewall that you can turn on that blocks all connections except from some allowlisted apps you currently want to use. A simple message check from a handful of installed messengers can occupy that connection for a few seconds while you're trying to load something that's much more important to you right now in the browser
(that^ was my situation this morning on ~12kbps 2G network, trying to load my ~4KB grocery list webapp in the grocery store with bad reception... ended up connecting to the store WiFi and sold my soul with a checkbox ^^')
Add in a weather app updating, system update check, some app trying to download a new version, the keyboard sending telemetry or downloading new words, the OS trying to load a "generate 204" page to detect whether there is connectivity, the GNSS subsystem loading SUPL data for positioning, Google submitting its WiFi scan data to either obtain a location or improve their service, calendar sync...
You can disable background sync or turn on battery saver to limit background activity which also turns off background sync.
For a firewall app. I would recommend Netguard.
Well most of my apps are foss so there shouldn't be this problem and doesn't messages rely on google push notifications and not working in background?
Depends on the app. Foss apps either periodically check for new messages or keep an active connection to the server to check for new messages. Some use Unified Push to reduce the battery drain of a constant connection.