Has anyone experienced this? Using my mom’s comcast wifi when I navigate to a new site the navigation takes a very long time, like a full minute. Once it eventually completes, I can click around inside the site at normal speed. This only happens with Firefox (I tried installing the Duckduckgo browser and it doesn’t have the problem). It only happens on the comcast wifi (switching to mobile internet makes it go away). Using my laptop on the same wifi network has no problem. The issue on Android only started with the last update on F-droid. The only extension installed is ublock origin.
I can make some useless guesses at what might be happening (DNS queries getting hung somehow) but haven’t made any attempt to check them with network sniffing.
Yeah that is not there on the Fennec that i’m using. But, there is a long gitlab thread someone linked to, that discusses what’s going on. With luck there will be some kind of fix and meanwhile there are some workarounds.
Xiaomi 11T Pro and Fennec from F-Droid with uBlock Origin, Privacy Badger and Consent-O-Matic browser addons. Thought it was my DNS because I replaced my router last weekend. Im glad that I found this post.
Idea: I’m always in Private mode (always, no exceptions) with uBlock etc. active and not seemingly having problems; my Pixel 6a (stock) private DNS is set to use Quad9. maybe try Private mode (only) on your device?
I’m having the same issue with Fennec from F-Droid on a Pixel 8 Pro. I thought it was network issues but it happens no matter how I’m connected, WiFi or 5G. Chrome doesn’t have the issue on the same phone and all apps work fine so it’s definitely a Firefox engine issue.
It seems likes a Fennec and Firefox specific issue. Try Ironfox and see if it behaves differently. Its not on F-Droid. Obtanium is the easiest way to install Ironfox (and keep it updated).
There actually is an F-Droid repo now for Ironfox, which I think I accidentally found in the repo list of NeoStore (another F-Droid client.) Link is also on gitlab:
Fennec F-Droid was updated to 142.0.0 and got a lot of publicity, and not for how great it works, unfortunately. It appears the slow spell hit it too as there’s an issue using extensions that use webRequest listeners, like uBlock Origin, Privacy Badger, Ghostery, TamperMonkey and more, that delay the connections to websites on start. For now we recommend to try a couple of things. While disabling these extensions fixes it, we know that the Internet is unusable without ad blocking.
First trick is to disable the extension, wait, hear me out, just toggle it OFF then ON back again. (Small note here: while there are many ads related extensions out there, maybe it’s time to look at their usage a bit more and decide to keep only one. We’ve seen users installing them all thinking this will cover all angles, while the truth is they are messing with each others rules and you might end up more exposed than less.)
Second, the issue is seen when swiping the app away (where the app status is decided by Android, Schrödinger’s app paradox), but some users reported success if instead of swiping it you actually close it. The Close button appears in the main menu if you enable “Delete browsing data on quit” in Settings. eg. “Cached images and Files” is the least annoying option to select, careful not to select any of the others. So, when you want to close the app, just use the button and on the next start it should load pages normally.
Third, our own @linsui pointed that, we can just close the screen. […] When you open the app, if you see it stand there doing nothing, lock the device and then unlock it. We don’t understand why this works for some, but surely it has to do with libraries and drivers and magic numbers.
As a reminder, there’s a reason why our fork of Firefox is named Fennec, it’s not about some code name anymore, but about the fact that our version is a work on top of Mozilla’s code. We need to extract all the bad (read non-FOSS, read privacy invading) code and give you a clean app that serves you and not some faceless corporation. Are we breaking some eggs to do this omelette? We sure are. And we do our best to serve it fast and tasty. Yet sometimes egg shells might end up in the final product.–
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My two thoughts on this are DNS, too:
But as you’ve tried DDG browser without issues, it’s more likely to be the first option.
Also, any VPN you may be using.
Thanks. The browser doesn’t have an HTTP over DNS setting afaict. It doesn’t have nearly as many configuration options as desktop firefox.
Can’t speak to Firefox on mobile, as I switched to Waterfox some time ago, but the latter definitely has it.
Oh well. I wish you the best in working it out.
Yeah that is not there on the Fennec that i’m using. But, there is a long gitlab thread someone linked to, that discusses what’s going on. With luck there will be some kind of fix and meanwhile there are some workarounds.
Xiaomi 11T Pro and Fennec from F-Droid with uBlock Origin, Privacy Badger and Consent-O-Matic browser addons. Thought it was my DNS because I replaced my router last weekend. Im glad that I found this post.
I’m not seeing this problem on the latest ironfox. Even heavier sites like github load within a few seconds.
I’m seeing what sounds like the same issue.
Based off your comment on extensions, I just disabled all extensions, and the problem went away.
If I enable any extension, it breaks again…
So to me it seems like a bug with the extension system
Edit: tested with Privacy Badger, uBlock Origin, and NoScript
Edit2: Fennec F-Droid build #1420020; Android 16 (GrapheneOS 2025081400)
Edit3: Found a bug report about it: https://gitlab.com/relan/fennecbuild/-/issues/134
Experiencing the same with Fennec.
Looks like a reported issue
https://gitlab.com/relan/fennecbuild/-/issues/134
Idea: I’m always in Private mode (always, no exceptions) with uBlock etc. active and not seemingly having problems; my Pixel 6a (stock) private DNS is set to use Quad9. maybe try Private mode (only) on your device?
I switched to quad9 private DNS and turned private DNS off, both in a private tab of Fennec - same results
I’m having the same issue with Fennec from F-Droid on a Pixel 8 Pro. I thought it was network issues but it happens no matter how I’m connected, WiFi or 5G. Chrome doesn’t have the issue on the same phone and all apps work fine so it’s definitely a Firefox engine issue.
It sounds Fennec F-Droid specific, somehow.
Reports here are saying the official Firefox build works fine: https://gitlab.com/relan/fennecbuild/-/issues/134
It also seems to affect certain extensions
It seems likes a Fennec and Firefox specific issue. Try Ironfox and see if it behaves differently. Its not on F-Droid. Obtanium is the easiest way to install Ironfox (and keep it updated).
There actually is an F-Droid repo now for Ironfox, which I think I accidentally found in the repo list of NeoStore (another F-Droid client.) Link is also on gitlab:
https://gitlab.com/ironfox-oss/IronFox https://fdroid.ironfoxoss.org/fdroid/repo/index.html
Oh, no shit! Now I know. I appreciate that!
On the latest F-droid blog post they listed this as a known issue:
Yes, its a known issue since v142.0. You will have to wait or try workarounds to get around this issue.