[Bug] Dark reader causes websites to not load or freeze. #11943
Comments
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I'm also having this issue.. took me a bit to figure out it was dark reader. I was getting this issue with amazon, https://shopgoodwill.com/ and ebay would also some times just freeze. |
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The same here. Tested on two laptops with Fedora 38. After upgrade firefox to version 120.0 addon constantly keep freezing browser on multiple pages like: gmail, discord, aliexpress and more. With dark reader extension disabled everything works like a charm, but eyes hurts... ;( |
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Could be duplicate of #11834 |
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Experiencing the same here. But it happened also on previous Firefox versions, though not as frequent. Indeed seems a duplicate of #11834. |
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Since it seems that downgrading dark reader doesn't help. Could it be writing some bad data to some cache that it then has problems with later on? |
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I am on Fedora 39, and I am also having this issue. For now I have the extension completely disabled so I can actually use my web browser as intended. |
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I've been seeing the same, but only since upgrading Firefox from 119 to 120 (openSUSE Tumbleweed). Happens on Google Maps, and interestingly also on the seemingly simple Firefox release notes (https://www.mozilla.org/en-US/firefox/120.0/releasenotes/), for me. |
Anyone knows for sure where it is stored? Surely not inside the xpi file? |
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Same, and i report high use in some CPU threads. 🤔 |
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Seems everyone here is on Linux (Debian 12/13 for me), FF 120, and everyone who mention hardware is on laptops? Me too, mine is literally ancient from 2012 and i swear at it more each day, but it has Intel i5-3210M integrated graphics and things like dark reader will eat up the cycles while content is loading... but I've been using it fine for years now. I have a newer laptop been meaning to transition to but no time and it's been collecting dust instead :( Anyway, I had Webrender enabled in about:config and have reset those back to default, and also turned on Firefox Settings > General > Performance > Use recommended performance settings. That didn't help here... This is a grave bug, though, that is happening on a number of seemingly random sites, rendering Firefox useless. Closing the affected tab doesn't help, and I need to check Midnight Lizard add-on provides similar function for most sites and is somewhat of a workaround, but it doesn't work as good as Dark Reader on many sites and hasn't been updated in years. Will be checking out other alternatives in the mean time. If anyone out there knows any debugging steps we could take to help get this fixed ASAP, let us know. Best, |
I'm on desktop (amd cpu and gpu) |
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I have experienced what everbody else here is saying too. Including having to manually kill the bugged process which was using 100% capacity. |
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I can confirm that issue. Before i could leave dark reader to "dynamic" mode and it worked for all websites i use. Now i have to change the method to filter, filter+ and static on a case by case basis, which have slow downs and other optical glitches in comparison to favourable dynamic mode. The affected websites are google and wikipedia and many others. |
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There are also some websites (Discord) which break the browser no matter what, as long as DR is installed (and not disabled in browser settings). So, even if DR doesn't use dynamic mode, or if DR is disabled for this site in DR UI. (luckily this is even rarer) |
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Same for me, fedora 39, Firefox 120, Dark Reader 4.9.70, a web for example: https://developer.android.com. But i can say there's a lot of pages that is happen with this error. |
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Have the same issue, start noticing it a week or so ago. Firefox usually freezes after 3-4 opened tabs with Dynamic filter. Already loaded tabs work fine at the same time until I try to refresh them. Current workaround is to turn DR off (I didn't have to fully disable it as extension even) Firefox 120 on Windows works without issues on the same machine. Fedora 38 @ 6.5.12 |
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Same here on Fedora 39, no issues on Windows. Seems most issues come from Fedora, I'm using the fedora RPM, not the flatpak version. |
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Same problem as everyone else on Fedora 39. Tried resetting the browser problem still persists. Does not happen with perfect consistency on any given sites, but I have seen it trigger repeatedly on Amazon. Firefox gets pinned at 100% CPU usage and remains running after all of the tabs are closed. |
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Quoting @yjugl in the duplicate issue #11834:
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I do not think this is soley a problem with Fedora. |
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Same issue for me (with multiple browsers) trying to access the Slack admin portal with the extension enabled completely or at least enabled for the site. Fixed when disabling for the site or completely. |
Indeed, I have it on Linux Mint as well... |
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Can confirm that the same issue occurs on Firefox 120 (RPM) in Fedora 39 when Dark Mode is enabled. Although interestingly, on macOS Ventura using the same Firefox version, the bug doesn't appear to occur and websites function just fine. I agree with the others above that this might be a Linux related issue. |
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Fedora (39) just rolled out an update to Firefox, I'm no longer seeing the problem with it so far 🤞 |
This update seems to have fixed the issue for me so far. |
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I can confirm, that the newest update to firefox has solved this. I am closing this issue. |
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I am still seeing this issue on websites: I am on Fedora 39 / Firefox 120 / Dark Reader 4.9.70 |
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The bug report says it will be fixed in 121.0b5 and 120.0.1, if I read that correctly. |
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After a recent update and some inital tests i can confirm the bug to be resolved. This updated firefox rpm package still shows version 120. But the issue seems to be gone. |
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@darioseidl Debian Maintainers dropped version 120.0.1-1 some hours ago. So far so good, I went all over the place in google maps with Dark Reader enabled in Dynamic Mode... |
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Unfortunately, for me the bug is still present :(
Then I noticed that I have some package installed "MozillaFirefox-branding-openSUSE" with version 68-18.3. I switched from that to "MozillaFirefox-branding-upstream" (same version as FF itself, 120.0-5.1) — and Wikipedia started working with DarkReader. |
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I think you'll need to wait for openSUSE to release 120.0.1 (which is "bigger" than 120.0-5.1). |
I was wondering about that :) |
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An alternative for some may be to use Firefox ESR: https://www.mozilla.org/firefox/enterprise/ See also: https://www.mozilla.org/firefox/all/#product-desktop-esr |
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I have the same issue, on Windows 11 and running edge |
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Same issue for me for months, took me until today to realize that Dark Reader is causing it. Latest version on Windows 11 (arm) both chrome and Edge. Sites freezing, very slow loading, reddit unusable. |
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Did some testing and this is an issue with "Dynamic" mode. Using Filter, Filter+, or Static does not cause extremely long load times on some sites. Switching to Dynamic, I can replicate this issue all day long. |
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If this bug is re-opened, these 2 links may be helpful to those investigating: runtime.onPerformanceWarning - Mozilla | MDN 1861445 - Add new hang warning event API for WebExtensions |
and others
Prerequisites
Bug Description
Running on Fedora 39. Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0
Using troubleshoot mode in firefox I have found out, that even simply having only dark reader enabled causes this problem. The problem, more precisely, is that opening websites such as discord.com/app or others with presumeably a lot of javascript (also happens with slack, alza.sk, ...) causes them to either freeze after a while/immediately or just not load (circular loading symbol visible on gray background in the tab).
I have tried a clean install of firefox with dark reader, clearing caches, downgrading dark reader, but it didn't help. Only disabling dark reader helps for some reason.
After posting to the r/firefox sub-reddit, I have found another person with the same problem, however my friend on another PC using Fedora isn't able to reproduce the problem.
Website Address
https://alza.sk
Steps To Reproduce
Expected Behavior
Websites loading and functioning normally
Actual Behavior
Some websites lagging, other freezing, crashing or not loading at all.
Screenshots
No response
Operating System
Fedora 39
Web Browser name and version
Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0
Dark Reader version
4.9.68
Additional Context
No response
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