Firefox Community Forum

When I try to download anything Firefox Caps my download speed at 10MB/s Other browsers don't. I tried, Edge, Chrome, Etc... they all give me access to my full Gigabit speed. I've attached 2 screenshots with a SpeedTest comparison.

Firefox: 90mbps Edge: 630mbps

Hi to all.

when i try to open an https link firefox show only a white page instead of the document from the link.

I make refresh without fix anything I totally remove firefox and delete also the registry entries and after make a new installation without fix anything.

Any suggestion?

Thanks and regards

I'm having trouble signing into to some online news sites especially videos. The screen shows activity without actually loading a video or website site. I can't connect, it just keeps spinning.

updated to latest firefox 136.0.1 today and several web pages will not load on first attempt. yahoo.com, google along others indicate that page is preventing this site from loading. I have not encountered any issue with Chrome. Have not encountered this issue with firefox previously but very frustrated user. I any attempted to start firefox in debug mode without any extensions or tools and firefox still encountered the same issue. Any recommendation would be appreciated.

I use several browsers and when it comes to functionality I consider FFox to be the best however with 1 major drawback - it's speed / lag issues which is why I stopped using it as my primary browser and only as secondary one

I can have 2 different Chromium based browsers open simultaneously and while this impacts the performance somewhat if I open Firefox and another browser responsiveness grinds to a halt (sometimes even crashes)

Even just starting Firefox by itself takes 5x as long as other browsers

So I'm wondering is Firefox just more resource intensive or is there something wrong with my setup?

The main difference between my Firefox install and my other browsers is the number of Bookmarks (10000s) due to me having it installed for much longer so is it possible for a large number of Bookmarks to slow the browser down even when not open ?

Other possible causes I read elsewhere are 'Cookies and site data' (currently around 50mb)

I clear the 'Temporary cached files' & 'Browsing history' on regular basis so they shouldn't be an issue

The add-ons I have installed are NoScript , Ublock Origin & Firefox Color

In regards to troubleshooting is it possible to install a 2nd install on the same system simultaneously without overwriting the current one ?

Thanks

Firefox runs some sites slows on one of my Windows 10 computers.

I'm running Firefox on 4 Windows PCs and 3 of the 4 work just fine using the same synced profile.

Fidelity.com and Amazon.com are 2 of the sites that are very slow to load. They will eventually load, but clicking on any links causes another slow load.

The same web sites are fast when I use MS Edge.

Troubleshooting steps I've taken (none of which have worked):

• Refreshed Firefox
• Created a new profile
• Uninstalled Firefox leaving my old profile
• Completely uninstalled Firefox and deleted my profile

Any thoughts on troubleshooting steps to take?

For the past few days, DDG search has been slow. I'm using Firefox version 146.0.1 on Windows 11. Disabling extensions didn't help, but clearing the cache had an effect: The first search after clearing cache is fast (about 1 second), but subsequent searches are slow (about 15 seconds). I was able to repeat this sequence several times. I also cleared cookies, but that didn't seem to have any effect. DDG Search works fine in a Private window. I'm stumped!

What’s going on with Firefox? Lately, I keep getting hit with reCAPTCHA over and over again, and YouTube is lagging badly. I reinstalled Firefox, deleted everything (cookies, etc.), cleaned up my PC, and reinstalled everything—yet YouTube still lags. I’ve noticed it’s always worse in the morning than in the evening. I tried using other browsers, and YouTube lags there too. What’s happening with YouTube and Firefox? Did something change? Are there conflicts between old and new cookies? Something other change ?

If I go on any website using OSM data (including OpenStreetMap itself) on Firefox logged into my account, I experience a lot of slowdown. This doesn't happen when I use incognito mode or when I use another browser, so I'm pretty sure there's some kind of cache or something that's connected to my Mozilla account that slows down OSM massively. I've tried clearing all cache and all cookies. I've even refreshed Firefox using the installer and it's still slow. I don't want to bother with deleting my account and creating a new one. What should I do to try and return back to normalcy on OSM?

My browser worked fine until a few weeks ago. It then slowed considerably in serving pages. Instead of a few seconds, it would take 30 seconds. It has done this consistently since then. I don't recall installing new extensions. My other browsers work normally at normal page speed. The Windows OS seems to work fine as well.

Can anyone think what might be causing this & how to fix it?

Firefox (152.0.4, 64-Bit) security settings – whether intended or not – are blocking work on the Internet. For example, loading Amazon takes forever until it’s unreachable, and further browsing (scrolling often not possible). The same with Edge works without any problems. What do I need to do to work quickly without constant blocks? Is there a zero setting? With simple security settings? The issue seems related to https to http as well. Also, opening a private new window once works, but a second window is blocked.

Hi,

I know that Google's doing everything to push everyone to use their spy software Chrome, but now youtube is really slow (15 seconds to stop a video when I click on the video, same to start it, 10 seconds to open a new dongle for youtube, and roughly 5 seconds waiting in others services).

Also, some others website work very badly or sometime not working at all with Firefox, why ? I have Ublock on Firefox too

I came back to Firefox for my privacy but if 35% of websites not work with it, not great. Have you an idea how to solve this problem ?

Thank you,

Matt

Hello, Seems that after the last update when I go to some websites at times the tab thinks its still loading until I stop it. This is happening on both of my Macbook Pros which are about 6 yrs apart age wise. I kept thinking it would stop doing this but that hasn't happened. Secondary browsers work fine. Open to suggestions. Also some AI usage trackers slowly stopped working but I can't image that's related. Thanks

Recently I’ve had a few Firefox problems on my W11 desktop. Sometimes when I try to load a website, nothing appears until several seconds (30 or more) have passed. During that time, the bottom of the screen shows the message Transferring data. Then, after that long wait, very often only a top piece (1/3 to ½) of the page appears. If I wait long enough (a minute or two), the rest of the page appears. Another problem is illustrated in the two images. When I go to AARP, I get the first image. T then press the Reload button and the second image appears. This problem is fairly recent. Previously, the first image always loaded with not problem. Any ideas of what’s happening and, even more importantly, how it can be fixed? Thanks.

I have done thorough testing with other browsers, drivers for my headset, reinstallations and the common issue is the new firefox. when I change from my desktop speakers to my headset there has always been a slight delay in the crossover. however since the most recent update Firefox has made, Youtube shorts and videos dont load properly. this is only when using my headset. when you go to shorts, and scroll it will play them one after the next with no load time or at least very little. now however, it takes 10-15 seconds to load, but ONLY when i am using my wireless headset. Corsair Void Wireless Headset. I have done everything on my end, and after countless tests with other browsers it is only Firefox and has only starteed since the most recently update.

When I open any stream, it takes about 2.5 seconds from the start of the page loading to the appearance of the stream image and playback. For comparison, in version 137 it took about 1.0 seconds.

I tried to launch the browser (Firefox 138.0.1) in troubleshooting mode, and also created a new profile, but the problem remained.

I also downloaded portable versions: 137.0.1 - everything is fine. 138.0 and 140.0a1 - slow loading.

I also have Zen Browser installed (the latest version is based on 138.0.1) - everything is fine.

- Translated via Google Translate.

recently for no apparent reason, Firefox is having extreme difficulty loading sites, with the spinning wheel going on for minutes at a time. It seems to happen with any website, but not with other browers. I have checked for malware with 3 different programs, and disabled the vpn. Other suggestions online seem to be 'for experienced users only', which does not include me. What should I do. Do I need to delete and reinstall Firefox? thanks.