Kiwi browser

[MusicaFM]

Prerequisites

• I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the uAssets issue tracker.
• This is NOT a YouTube, Facebook or Twitch report. These sites MUST be reported by clicking their respective links.
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
• The issue is not present after disabling uBO in the browser.
• I checked the documentation to understand that the issue I am reporting is not normal behavior.

I tried to reproduce the issue when...

• uBO is the only extension.
• using a new, unmodified browser profile.

Description

A veces se bloquea en Kiwi Browser y no me carga ninguna web se queda cargando, abro para configurar Ublock y de queda en blanco tengo que deshabilitar para poder entrar en páginas webs y si lo activo de nuevo puede que valla bien o no

A specific URL where the issue occurs.

None

Steps to Reproduce

Se bloquea en Kiwi browser al inicia el navegador, la primera vez funciona vien, pero cargas de nuevo u otra web y se bloquea

Expected behavior

Deberia ir como siempre

Actual behavior

Se bloquea en Kiwi browser, las demás extensiones funcionan correctamente

Configuration

uBlock Origin: 1.57.0
Chromium Mobile: 124
filterset (summary):
 network: 334928
 cosmetic: 373266
 scriptlet: 56698
 html: 0
listset (total-discarded, last-updated):
 added:
  adguard-generic: 80490-7589, 16h.18m
  adguard-spyware-url: 1492-107, 16h.17m
  adguard-spyware: 102336-32419, 16h.18m
  block-lan: 61-0, 5d.17h.20m
  curben-phishing: 14193-4, 3h.58m
  adguard-cookies: 29175-80, 16h.18m
  ublock-cookies-adguard: 1106-0, 5d.17h.20m
  fanboy-cookiemonster: 50759-3950, 5d.16h.33m
  ublock-cookies-easylist: 1106-1106, 5d.17h.20m
  adguard-social: 22753-874, 16h.18m
  fanboy-social: 15849-29, 5d.16h.33m
  fanboy-thirdparty_social: 68-0, 5d.16h.33m
  [44 lists not shown]: [too many]
 default:
  user-filters: 2-1, never
  ublock-filters: 37741-812, 13m Δ
  ublock-badware: 8341-15, 13m Δ
  ublock-privacy: 785-0, 13m Δ
  ublock-unbreak: 2245-5, 13m Δ
  ublock-quick-fixes: 224-0, 13m Δ
  adguard-mobile: 9234-171, 16h.16m
  easylist: 84380-1307, 13m Δ
  easyprivacy: 50455-1141, 13m Δ
  urlhaus-1: 8795-0, 13h.56m
  plowe-0: 3763-13, 5d.17h.21m
  spa-0: 4023-7, 13h.56m
  spa-1: 5447-187, 16h.17m
filterset (user): [array of 2 redacted]
switchRuleset:
 added: [array of 1 redacted]
userSettings: [none]
hiddenSettings: [none]
supportStats:
 allReadyAfter: 4628 ms
 maxAssetCacheWait: 1787 ms
 cacheBackend: indexedDB

[gwarser]

Try reducing number of filters (subscribed lists) - it's possible your device does not have enough memory when uBO parses and compiles all lists (Startup is slow allReadyAfter: 4628 ms). What device is this?

Kiwi is not supported #2791 (comment)

[MusicaFM]

Xiaomi redmi note 11s

[gwarser]

6 or 8GB that is.

On my 6GB phone, Nightly, uBO dev, 140k network + 180k cosmetic filters, WebExtension process can take 3GB as per profiling.
1.5GB with default settings.
System shows 3.6 out of 6GB available when all apps are closed.

With 330k network + 370k cosmetic, maybe some stuff in background, out of memory situation is possible.

[stephenhawk8054]

You enabled all regional filter lists?

[MusicaFM]

Yes

[stephenhawk8054]

Why? How many times do you visit Vietnamese and Thailand sites?

[MusicaFM]

Never, but I activate it just in case

[stephenhawk8054]

Don't do that. Just enable the lists of the languages you usually visit. The more lists you enable, worse performance and potential breakages can occur without any benefits.

[gwarser]

Firefox Nightly 2024-04-07 15.06 profile.json.gz
Firefox Nightly 2024-04-07 15.14 profile.json.gz

[gwarser]

Good news then. I recall seeing such high numbers before on desktop, I will need to check if it was discussed, check my test method and try it again to make sure.

[gwarser]

I'm not convinced for now. Memory fluctuates a lot. When I set my system monitor to higher refresh rate (0,1s), I see the memory increasing by nearly 1GB. On my default setting (2s), it's unnoticeable.

---

On desktop.

[gorhill]

These gigabytes in FF profiler are bogus / virtual

On desktop, wasm causes increased virtual memory usage, maybe it's the same thing in android.

[gwarser]

Profiler has a "Native Allocations" feature, which should report more real data. But still only sampling. https://profiler.firefox.com/docs/#/./memory-allocations Sadly crashes for me on Linux and I cannot allocate enough memory to VM to not see swapping.

---

I was able to capture profile under Win after reducing the number of subscribed lists. For some reason, the recording does not capture the first few dozen seconds.

Firefox 2024-04-08 22.42 profile.json.gz

[gwarser]

Most of the allocations are from JSON.stringify and Array.prototype.join. It seems to me that there are a lot of calls to these functions, so this can explain both, the memory usage - if GC is not catching up, and the profiler being wrong - by capturing more samples with allocation than with deallocation.

---

Definitely not virtual memory. I can capture some of this in about:memory reports - in explicit allocations, heap and js runtime.

[gorhill]

Most of the allocations are from JSON.stringify and Array.prototype.join

This is from parsing/compiling filter lists, not unexpected. Lists are compiled once in a while.

[alexandreraufast]

I had same problem on latest Kiwi Browser. Uninstalling-reinstalling uBO extension did work.
I also had a lot of custom filters, copied from my computer.

[ChowMein47]

I had same problem on latest Kiwi Browser. Uninstalling-reinstalling uBO extension did work. I also had a lot of custom filters, copied from my computer.

The best solution is uninstall Kiwi Browser, install Firefox or Waterfox. Fyi, Edge for Android now support extension including uBO (still beta)