I've seen a couple of instances of people claiming uBlock Origin (uBO) eats several or several dozen gigabytes of RAM.
Examples:
- Ublock origin uses 26.6gb of memory on firefox #994
- Using 24+Gb of virtual memory on Firefox/Ubuntu 20.04 #1532
- Cause memory leak on Firefox 107 #2401
- WebExtension process can take 3GB as per profiling. 1.5GB with default settings. #3198
These are just bogus / virtual memory readings, not real RAM usage.
All technical explanations are contained in the linked issues above.
Hence there is no point in spamming the issue tracker by creating new duplicates over and over, discussion and sharing opinions should be continued in already existing threads, new threads will be labeled as invalid
or duplicate
and closed.
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- Few words about re-design of uBO's user interface
- Reference answers to various topics seen in the wild
- Overview of uBlock's network filtering engine
- Overview of uBlock's network filtering engine: details
- Does uBlock Origin block ads or just hide them?
- Doesn't uBlock Origin add overhead to page load?
- About "Why uBlock Origin works so much better than Pi‑hole does?"
- uBlock's blocking and protection effectiveness:
- uBlock's resource usage and efficiency:
- Memory footprint: what happens inside uBlock after installation
- uBlock vs. ABP: efficiency compared
- Counterpoint: Who cares about efficiency, I have 8 GB RAM and|or a quad core CPU
- Debunking "uBlock Origin is less efficient than Adguard" claims
- Myth: uBlock consumes over 80MB
- Myth: uBlock is just slightly less resource intensive than Adblock Plus
- Myth: uBlock consumes several or several dozen GB of RAM
- Various videos showing side by side comparison of the load speed of complex sites
- Own memory usage: benchmarks over time
- Contributed memory usage: benchmarks over time
- Can uBO crash a browser?
- Tools, tests
- Deploying uBlock Origin
- Proposal for integration/unit testing
- uBlock Origin Core (Node.js):
- Troubleshooting:
- Good external guides:
- Scientific papers
uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.