Firefox-Hilfeforum

I recently installed new pc with fresh Firefox Developer Edition. Then I transfered the profile folder from old pc to the new pc. All bookmarks, addons, etc is there. Just the XULRunner popup appears only on the new pc. I uninstalled firefox on the new pc again and reinstalled it with profile cleaning. After profile cleaning firefox got faster and addons got removed. But the XULRunner popup keeps appearing. When I go to taskscheduler and trigger the "Firefox Developer Edition Background Update CA9422711AE1A81C" again, the XULRunner popup appears. Removing this taskscheduler and Firefox keeps readding it and the XULRunner popup are back. Any idea how I can get rid of the XULRunner popup?

Hello,

I've just downloaded firefox, making the switch from chrome. Doing so I've migrated a couple of tabs and extensions I had. Totally it was 50 tabs, with 6 extensions, I've downgraded now with the switch and it's only 37 tabs and 2 extensions, even so firefox is using more ram than google by a large amount. With 50 tabs open, chrome was using 1.5gigabytes of memory. With the same 37 tabs and extensions, firefox is currently using 6 gigabytes of memory.

The tabs used are from reputable sources, so firefox shouldn't be breaking on these websites. The extensions I am using at the moment on firefox is, Ublock origin, Dark Reader.

As far as reputation goes, firefox should be using less Ram than chrome. Is there a setting I should know about to lower such performance issues? Firefox acceleration is ON.

Thank you for any answers.

The main youtube page loads and displays ok. As soon as a video is played (even in preview), firefox crashes. I'm on Linux Manjaro. other websites with video work fine (for ex Vimeo) I tried disabling all my addons and plugins in the normal mode (not troubleshoot mode) and it still crashes. However, the troubleshoot mode works fine ! Refreshing firefox didn't fix the issue. I have another computer with Linux manjaro and firefox works just fine. I spent a lot of time trying to understand what's wrong but I really don't see why.

Thanks in advance for your help.

I just updated to the latest version of Firefox, and all of a sudden I have a new icon, Extensions, that looks like a puzzle piece, I cant seem to be able to remove it....at all.

After start up Firefox I am not getting any audio. No other app nor browser has this issue. It does not show up in the volume mixer. I've made sure all apps, browser, drivers, and windows are up to date.

First time ever. Tested other browsers, sound works fine. Changed no settings when it suddenly went silent. Refreshed. Uninstalled/reinstalled. Nada/nothing. So to not feel as if I've lost my hearing, I won't be using Firefox until there's a fix on their end, already tried everything suggested in troubleshooting and refreshed. It's just not playing well with Win11.

In the current Version of Firefox the input field is set to the wrong filetype if select an csv file.

Open with Chrome and Firefox. Chrome set the file type to text/csv Firefox to "application/vnd.ms-excel"

Working example open the consoel to see the output: https://codepen.io/GrizzlyStu/pen/YzjZjez

Example Site: https://mcpsc.mo.gov/media/pdf/genesis-school-inc-revocation-hearing but I've had it happen on several sites.

On this page, I am not able to click the download button built into the pdf.js viewer and have it download - it clicks and does nothing. If I right click in the frame and click "Show only this frame", then I can download the PDF using that same button. Any ideas?

I am a game developer. I work about 12 hours a day, in Chrome. It is my main browser. When I installed firefox, I was asked to "import" cookies and such. I did. Which has been a terrible headache. All of the bookmarks and everything from Chrome came with it, which I already had in firefox, since I've had it for years. But, I thought since this is a brand new computer that I needed to do that. Fast-forward a couple of weeks and now EVERY time I open up firefox, all 10 million history links are in history.

I use firefox to unwind and watch movies. I don't want 10 million links to work in front of where I left off in binge watching Seinfeld.

I've tried everything and followed instructions and STILL, all history from Chrome shows up in firefox. It is infuriating. AND uninstalling and reinstalling did nothing. The setting is already in the account to import from Chrome to firefox. I've removed addons and extensions as well. Nothing has worked.

Hi. After recent update I started to see issue where blue/white border is present when clicking web site elements. Ususally this kind of border is present if you select elements via keybaord but in this case it's present when clicking elements with mouse. It usually stop doing this if I close and reopen FF but not for long. Example is in posted screenshot. I have not altered my settings in any way.

I am unable to sign into Microsoft 365 services in Firefox. When I try to sign in on the Microsoft 365 Website, it doesn't sign in, it simply redirects me back to the website. When I try to sign in from the Outlook login page, I get an error page saying "500 Something went wrong. Repeating redirects detected." Screenshot attached.

1. I was able to sign in with another browser. 2. I was able to sign in on a device running Windows 10. 3. I have cleared the entire cache and history on the Firefox browser - it didn't work. 4. I tried logging in with Firefox in Troubleshooting Mode - it didn't work.

I saw an archived thread from 10/28/2021 where @OthelloBloke had the same issue ("Microsoft 365 Signin on Office.com Doesn't Work After Windows 11 Update"). It didn't seem to have been resolved. It has been a while since Windows 11 came out. Has there been any resolution to this issue? Please help me fix it. Most of my activities are on Microsoft 365, and I prefer to use Firefox as my browser. But if this is ongoing I will need to abandon this browser in order to access my work.

Hi, I just replaced my SSD (Samsung 960EVO m.2 250Gb) for a larger/faster SSD (Samsung 980 m.2 1Tb) . I'm on Windows 10 and have 32Mb Ram. Firefox is now very slow on some websites (not all).

This example is typical and has occured on multiple sites. To test and compare, I copied the URL, created a new tab in Firefox, then Paste and Go. I timed this 3 times and each time was 30 seconds. I Pasted the same into Chrome and Edge and each time it was instant. https://savingschampion.co.uk/best-buys/personal/easy-access-accounts

On my previous SSD, there was never an issue of any lag on any site.

BBC.co.uk/news is fine, as are several other sites. Does anyone have any idea what's happening? This is making Firefox unworkable for me, so unless I can fix the issue, I will have to move permanently to Chrome or Edge. That would be a shame after many years with Firefox.

Thank you in advance.

Previous versions of Firefox allowed scroll wheel button clicking to open links. I noticed that the latest version doesn't allow this. Ctrl + left click works as normal but not the scroll wheel clicking.

Firefox is suggesting usernames on multiple websites that I access regularly. However, I have the saved logins feature turned off in Firefox.

When I access Settings > Privacy & Security > Logins and Passwords - it shows all of these options turned off.

When I access Settings > Privacy & Security > Logins and Passwords > Saved Logins... - it indicates No Logins Found / No Synced Logins found.

I do have Firefox Sync turned on to sync between devices, but since it indicates "No Synced Logins" it doesn't appear this is coming from another device. I have checked multiple devices and found they all show "No Synced Logins"

Only happening in Firefox. I am not getting these suggested logins in Edge or Chrome.

Happening across all my Windows 10 and 11 devices that have Firefox sync enabled. 2 x Windows 11 Pro 22H2 (build 22621.819) 1 x Windows 10 Pro 22H2 (build 19045.2364)

Firefox 108.0 on all Windows devices, but it started before updating to 108.

I have not yet tried resetting Firefox - hoping to use that as a last resort.

Any suggestions on where else to look or what I should try?

I expect the back button to return to the previous page visited, but too often the button either doesn't respond at all or a right click is required to view the page history. Is there something I need to do get the original function of the back button that I thought was universal in most browsers?

i somehow can't find the 'mozilla' folder in 'appdata/roaming'. i was trying to open my profile folder but it displays the message saying that it's 'unavailable'. i digged in further into the problem and found out that i had no such mozilla folder in appdata. is there any way to fix this problem? or am i just missing something?

Dear Firefox Team, good morning.

I hope you are doing well and that you are all healthy.

Guys... while looking for a way to measure the performance of our site, we came across the Core Web Vitals (CWV) some time ago. These are Google KPIs for measuring the user experience on a page (https://web.dev/vitals/#core-web-vitals). Unfortunately, some of the KPIs (like the Largest Contentful Paint or Cumulative Layout Shift) are currently only accessible using Chrome and it's preformance API. That's a pity, because there are also many people using Firefox who visit our site... and it would be interesting to have such KPIs as well.

In an article by Cloudflare (https://developers.cloudflare.com/analytics/web-analytics/understanding-web-analytics/core-web-vitals/) we recently learned that Firefox is also planning to expose the metrics used in the CWV... only the "coming soon" from the article is a bit vague. That's why I'm contacting you to get some more information on that topic. Do you perhaps know whether the topic is planned and will be tackled this year?

Thank you for your attention. Best regards, Carlos

I have had 2 sites produce this error box in place of the target Web Site (See Picture). I have read previous topics about this and have followed the instructions with no positive results. FYI, clearing the web site's cookies, clearing Cache and disabling Hardware acceleration.

The first was https://www.walmart.com. After leaving a "Feedback" 2 weeks ago it appears as if they were able to fix the problem. However, the site is not as important as my Medicare PPO provider. I tried loading previous versions of Firefox, but that did not help.

In both instances the LOL "support" people's response was to try a different Browser. So, I reluctantly loaded Google Chrome and it worked perfectly. From my perspective, this eliminates everything to do with my machine setup.

Below is the sign-on URL (not unique to me). Please note that this 668 character URL has not changed for over a year. It is just Aetna's adoption of the Imperva Security Firewall. Both my Winders 8.1 and Winders 10 machines produce the identical results.

https://www.aetna.com/AccountManagerV3/v/login?identityTransaction=VIhzS3Xx1ogw4rzQY5lXUvDYBtXFZiXttegdT9ffK%2FOZ8oTHnKbryvfgfagvpO0aknHiEN2hnELOIkjfz3eJNeBfKQ%2FUDo0hSJHhjsdZdJw0rkVj%2BFjAVYypzW5kRH%2FzzOlbxrN6KKpjWvagusMp%2BzwgQqvg5xvUkwLCs3MlD%2BkzHOTVKlu4GYxJgmzr3Y9NUdFGUI9PHurN4QxSyvXxNjJ4jSSL4NHuctvtQyV1fUh%2FOqpHJglcALQuuNeyQ1QncyKPZJYf5rj1DLC2zrxKX0VgVWQZfSbw5Pouiv%2FWfwWxArHPHcV5cXr3kI2j33C8dUl0Jdup0nvdVs%2Bxigzp%2BmMQUaHxaw3B7tiJ7eokyNMgvG4V5SPw9FL5j3mhwBAirx%2BmX7Yj0qDZZNRl8z1WcvHen8HwsDijtH4Sg%2FNdsuzhXIw8snHF6hUd4n3MbJerO8nRUdzKR%2BhNCNq%2FjeuQWmT1cyQ3QtmIXcL0ab42vk6or1SX5wG%2BIMF%2Bk6ZJQw8h&appname=NAV&branding=&skin=&language=&channel=web

I've been professional web developer for almost 15 years. I've wanted to try to step away from Chrome, but I'm having a hard time navigating through basic functionality with Firefox's developer tools. One of those was a simple "Control + F" find feature. Am I missing something?

Specifically, lets say I want to search for a specific class within a style sheet. In Chrome I can bring up the dev tools, select the style sheet, Control + F, and it will give me a toolbar with options to step through each instance of the class. It gives me total count and I can hit the up or down arrow to cycle through each instance of that class (insert any selector here). I can also Replace an instance or all instances.

When I try this in Firefox's dev tools, I get the first instance but see no way to do anything else. If I hit enter it doesn't cycle through to the next instance but creates a line break in my style sheet.

I've researched with no success. I know there is the filter option but that isn't what I'm looking for in this case. Any help would be greatly appreciated.