profiler
Fenix
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profiler | Fenix | |
---|---|---|
184 | 750 | |
1,103 | 6,681 | |
2.3% | - | |
9.6 | 7.7 | |
2 days ago | about 1 year ago | |
JavaScript | Kotlin | |
Mozilla Public License 2.0 | Mozilla Public License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
profiler
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Long running tab (kiosk), 100% CPU
Probably your best bet is to use the Firefox Profiler once it starts hogging the CPU to try to see what it's doing. I'd be happy to take a look at the result although I don't have a lot of experience at diagnosing performance problems; hopefully the profile will make it obvious what's going on.
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Slow Firefox Startup
I tried using the https://profiler.firefox.com/ and running with:
- Firefox Profiler
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Definite tab bug affecting both Win/Linux intermittently
You can try to reproduce while taking a profile using the Firefox profiler, then share it in the #perf:mozilla.org room on Mozilla's Matrix instance.
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Why does Firefox run slow
Run a profiling session for ~30 sec when you notice something is running slower than you expect, see https://profiler.firefox.com/. Share results here if you want help interpreting them.
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Problems with Firefox non snap versions on Ubuntu 22.04?
Next time, send a SIGABRT to the main process (kill -6 $(pidof firefox)) and use the resulting backtrace (you will find a link to the crash report in about:crashes) to file a bug. A performance profile could be useful, but you'll need to know first what to capture. This seems like a graphics issue, so try the Graphics preset. Share a link to your report.
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Dear Firefox, why are you so terrible at rendering Flutter web apps? It's like potato quality.
https://profiler.firefox.com will be useful if you can capture and share it to developers.
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Webpages not loading or taking forever to load
If you can reproduce it in safe mode and a clean profile, capture a performance profile using the clean profile while trying to load a problematic webpage, don't remove any information from it, and share it here (although it's typically not easy for users to analyse them), or file a bug with it attached.
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Firefox hangs on Facebook page
Next time, capture a performance profile using the Graphics preset, and kill the browser by entering kill -6 $(pidof firefox) in a shell. This will create a bug report (unless debian disables the crash reporter) that would indicate where Firefox is stuck at. You might need to use an official build to get useful results.
- AV1 Lagging Like Mad
Fenix
- Firefox on Android does not support client certificates
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Website Search Hurts My Feelings
It's been that way for years: https://github.com/mozilla-mobile/fenix/issues/20351
I lost hope it and other issues would be fixed and moved to Chromium on Android.
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Andriod app and Web are synced but..
Firefox for Android was rewritten pretty much from scratch circa 2020. Collections are one of its many unfinished and poorly-thought-out features, and they never got around to implementing the ability to sync Collections to desktop. It was a known problem in 2019, while the rewrite was being worked on, and Mozilla doesn't appear to have given it any attention in the years since.
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Firefox on Android: Home Button
People have been asking for this for over a year via Mozilla's current feedback channels, and for two years on the previous issue-reporting venue, to no avail. It was automatically moved from the old venue to Bugzilla ostensibly because Bugzilla makes it easier to track and work on issue reports, but they haven't actually worked on that issue report at all.
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Is it me or Firefox?
Known issue, not a new issue, and unlikely to be fixed any time soon, unfortunately. I had this before I stopped using the Android version a year ago. It was reported as a bug at least a year ago on their old issue tracker, and later moved to the current one, where last activity on the issue report was three months ago. No apparent progress toward any fix.
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Mozilla tells extension developers to get ready to finally go mobile
Since Fenix's first release they've been saying that the absurd limitations on add-ons support were only temporary, and they would have quickly increased the number of supported ones.
And instead absolutely nothing changed for three years.
Furthermore the insane bugs from which Fenix suffers from its release (https://github.com/mozilla-mobile/fenix/issues/12731) (making it unbearable) have been left hanging, focusing the few resources on dumb ui experiments.
So everything suggested that Mozilla did not care of its Android browser, or actually that they were deliberately sabotaging it.
This news instead represents a huge improvement, hence my bewilderment.
I don't know what people who downvoted my message thought I meant.
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Trying to abandon chrome, but firefox is not doing well in my testing! Suggestions?
https://github.com/mozilla-mobile/fenix/issues/20012 and https://bugzilla.mozilla.org/show_bug.cgi?id=101865
- Firefox desktop extensions coming soon for the upcoming Android release
- For #19918: Add option to hide the toolbar home button (Firefox For Android)
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Firefox Address Bar Tips
This was sadly deprecated on Android: https://github.com/mozilla-mobile/fenix/issues/12099
It was such a huge loss for me that for at least a year I used the outdated pre-Fenix. Now they still work on Desktop but they just stopped working on Android (althouth the bookmarks itself are synced-up)
What are some alternatives?
xkeysnail - Yet another keyboard remapping tool for X environment
iceraven-browser - Iceraven Browser
old-reddit-redirect - Ensure Reddit always loads the old design
bromite - Bromite is a Chromium fork with ad blocking and privacy enhancements; take back your browser!
rust-threadpool - A very simple thread pool for parallel task execution
ungoogled-chromium - Google Chromium, sans integration with Google
OpenH264 - Open Source H.264 Codec
darkreader - Dark Reader Chrome and Firefox extension
wolvic - A fast and secure browser for standalone virtual-reality and augmented-reality headsets.
multi-account-containers - Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
heaptrack - A heap memory profiler for Linux
Firefox-UI-Fix - 🦊 I respect proton UI and aim to improve it.