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I've just opened one simple Web site (in addition to Mozilla), and already CPU usage sits at about 20%! Please refer to my recent posts here at "Why is Firefox Suddenly Taking Over my CPU?" for the problem description. I'm re-posting simply in hopes that I can "send data" on this one from outside my sandbox. Regards -- jclarkw

Switching between private browsing mode to normal browsing mode or vice versa results I the header size increasing. Need to close it and reopen for it to go back to normal. Running Android 15 on an Asus Zenfone 10

Hello

I have a 2021 IMAC desktop OS 13.7.8 In the last few days I have updated to Firefox 150.0 since then, my computer will not sleep if Firefox is open even if I select the Apple menu---sleep to manually make it sleep, it goes dark and comes back awake within 5-10 seconds. I CANNOT get it to sleep with Firefox open. If I close FIrefox, then I can get it to sleep. ANy windows that I keep open are windows I have had open for weeks and this did not affect the IMAC;s ability to sleep in the previous version of FIrefox. The only thing that has changed is FIrefox so I am telling you there is a problem...PLEASE fix it asap.

YES.....I have , as suggested in help sources.....done these..... 1)Settings > Privacy & Security > Autoplay and set it to "Block Audio and Video" 2)about:config in the address bar, search for media.video-wakelock, and set it to false

Youtube playback causes Firefox to freeze up. Just the tab that is playing, not the entire browser. I have reinstalled firefox, used recommended settings and I have no addons or extensions. Other browsers work fine and there is nothing wrong with my computer. It is only firefox. This has been happening for about a month now.

When i start to use Firefox and browse internet, usage of ram memory slowly rise up to max, using 5-10 GB, i disabled AI, same problem, don't know if something with Youtube causing this, every open tab is consume too much of ram memory. I think it started yesterday or day before. Installed again Firefox, same problem, if i have more open tabs, quickly rise consumption or ram, i have 16GB. Now 4 tabs, FB and 3 Youtube, more than 5.6BG. In Task Manager shows Firefox (20), 20? only 4 tab open and ram rises.

Today Firefox has suddenly started using ~20% of my CPU capacity, causing my cooling fan to run high most of the time. Since I had been running Firefox v.149.latest, I tried updating to v.150.0, but that made no difference.

It's not Firefox by itself (only Task Manager open) but whenever I open another tab with almost any website (including this one) that CPU usage spikes. What gives?!

Details: Running under Windows 10 Pro (yes, I have installed the ESU package, good until thi8s fall) on a Lenovo P1 Gen 2. Currently running Firefox inside a Sandboxie Pro v1.17.4 sandbox.

Please Help! -- jclarkw

For about a month, Firefox on Android has had a frequent problem where it stops loading pages and shows a blank page if I try to go to any open tab. The app is not frozen because I can click on things, ie, click on the browser bar and type in a URL, but no pages are visible. Force quitting the app fixes the problem. This is not only annoying but has other issues like losing any incognito tabs. The same issue has been reported by other users on reddit: https://www.reddit.com/r/firefox/comments/1ox1h2m/firefox_on_android_stops_loading_pages/

App info: 150.0 (Build #2016155439), 1a6c5c6f11fca486436075d92fd82d51f706c775 GV: 150.0-20260415192539 AS: 150.0.1 OS: Android 16

After March or Febuary I think? Bookmarks become incredably slow. My device is a S20 FE rooted using U.N.1.C.A ROM and using Snapdragon 865 processor. It took roughly 80 seconds or more just to open the main bookmark folder. I also have big bookmark folders but it worked fine on the last update. I came across a Reddit post with similar situation: https://www.reddit.com/r/firefox/comments/1rhe8a5/bookmarks_are_a_lot_slower_to_change_location_on/ This is all I can gather

I'm experiencing an issue with the latest Firefox update. If I refresh a link/page the browser "spins out" in a rapid endless refresh cycle. In some cases, I receive an error message, "too many requests," and in other cases, the browser "locks up" and quits responding at all.

Is this a known issue?

Vince C.

FF can take 30-60 seconds to render ANY page after waking the computer from sleep. Windows 11 fully up to date. I've taken a profile during this time and you can see memory cycling up and down about every 5 seconds but I'm unclear what else I'm seeing there. I also see very little network traffic in the profile. I typically have 6-7 tabs open, and other programs on my computer, e.g. email, are not showing this lag.

https://share.firefox.dev/4tz810z

Kubuntu 24.04 with various Firefox iterations including 149.0.2. It happens on stand alone, snap and flatpak versions. I do not know what triggers this problem. As far as can tell it only occurs on Wayland and not on 'X'. .... After using Firefox normally for a while I first notice the problem when I can't click into the separate search box on the toolbar, then I find I can't drag the tabs around as per usual. Then, if I click on a toolbar icon it does not respond. In summary, the toolbar becomes inoperative. I do have 9 pinned tabs but I can often have many more standard tabs up before I ever notice the problem and, today, when it occurred I only had 3 additional tabs up. So, I can't tie the problem to the number of tabs.

I noticed in the past day that Firefox started using alot of ssd. It wasn't doing this before, I've been a Firefox user for years now. I'd like to stay that way rather than going with Google or Microsoft. I don't trust some of the other small companies with browsers. I like the fact that Firefox uses it's own engine too. In the last day it started using alot of disk for no reason. How do I fix this. Well, well, well. I just noticed that Icloud from Apple was using alot of disk too and when I shut it down in task manager it stopped. Firefox disk use is virtually none just like Microsoft Edge. So it's some kind of interaction with Icloud that is causing that. But it wasn't doing that before. I have task manager open most of the time to catch stuff like that. My system is decent I have a 2TB 990, 2TB 980, and a 2 TB 860, with and AMD 5800x, 32 GB of ram and an Nvidia rtx 470. Maybe some kind of backup with Icloud was happening, that isn't with Edge. So I know shutting that off works. Icloud is useful for backing up things from my phone though.

The keyboard freezes on the screen after pressing enter on a search performed in a new tab. This issue occurs specifically when the tab is opened through the tab tray interface (grid view) and does not happen when the tab is opened using the plus sign (+) on the main bar. To reproduce the bug, you must first open the tab switcher and create a new tab from there. After typing any search term and pressing enter, the keyboard remains stuck on top of the browser, blocking the view of the content. It only disappears if the user minimizes the app or opens the Firefox menu. This behavior has been confirmed on Android 11, 13, and 14, affecting all versions of Firefox. The error persists even after a factory reset of the device, on clean installs with no configuration changes, and across different keyboard apps. The bug happens in both normal and private tabs and has also been reported by other users on Reddit.

Below is a link to one of the Reddit videos reporting the keyboard freezing issue.

Link: https://www.reddit.com/r/firefox/comments/1sme8o0/input_freezing_during_search_queries_on_the_new/?solution=3c90d7ac1cbe03cb3c90d7ac1cbe03cb&js_challenge=1&token=bbbe4bf1c9a2b5160829c4be34da58614925fd3069bcbe202a70de3f819c002e&jsc_orig_r=

When I open Firefox, my main tab goes back to the homepage. First, search or bookmarks or any link do not load and revert to the homepage instead. However, on my second attempt, everything works fine. This bug happens every time I restart the app or close it. Please address this problem quickly, as I am using Firefox for Android downloaded directly from the Google Play Store, and I have the latest version, 150.0. I initially reported this issue in version 149.0.1 and would appreciate a quick fix.

When I switch tabs from Google Maps to something else and back again, my browser often freezes and I have to restart Firefox. This also happens with websites that integrate Google Maps. I tried switching off several extensions, but the problem persists. It never happened to me on older Firefox versions. Is there any solution to this?