Firefox 78.0.1 does not remove closed pages from memory - lags and high RAM usage

After updating from 77 (I think it was 77.0.2?) to 78.0.1 I started noticing terrible firefox performance after a few minutes of browsing. My standard browsing habit cons… (read more)

After updating from 77 (I think it was 77.0.2?) to 78.0.1 I started noticing terrible firefox performance after a few minutes of browsing. My standard browsing habit consists of launching browser with 1 pinned tab and 1 home page (so 2 tabs only), then opening 5-10 tabs from my bookmarks, checking pages then closing them and leaving only 1 pinned page open. In firefox 78.0.1 after doing this (opening and then closing multiple tabs "to the right" using new context menu added in 78) my ram usage does not drop. It goes from 2.4GB (system only usage) to 5.0GB and does not drop after closing tabs. However when I open 10-20 tabs again RAM usage does not rise (maybe slightly, like 5.3GB). So it looks like firefox has multiple tabs stored in ram and opening new tabs just rewrites that memory instead of allocating new one. I have 8GB of ram so 3GB of usage from 1 open tab is crazy. I think it was 500-900MB before. I also have terrible lags because of this - browser hangs up every few seconds for few seconds. I had trouble writing this post with 2 tabs open because of 3.3GB ram usage! Restarting browser helps - ram uasge rises from 2.4GB to 3.2GB only (800MB for 2 tabs) but every new opened and closed tab seems to stay in memory. For example if I open 10 more tabs except for 2 that always open so I have 12 tabs I have 3.6GB memory usage. After I close them it slowly drops to 3.5GB instead of returning to 3.2GB. It does not matter how I close tabs - using right click context menu (close other tabs, close tabs to the right), using X on tabs, or using add-on to close all tabs except for pinned ones. They always remain in memory somehow. PLS fix this ASAP.

P.S. I also tried checking about:performance menu but there is nothing interesting here. It says that 2 opened tabs and addons use 100MB of memory which is not true because browser at this moment uses 1060MB.

Update 1: I also tested safe mode. 3,4GB of PC RAM usage on firefox safe mode start. Opened few tabs, ram usage goes to 4.2GB. After closing all tabs except for 1 ram usage start to SLOWLY decrease but it stops at 3,7GB. Ram usage drop was really slow like 10-30 seconds. It should be instant after closing tabs.

Asked by Piterk 3 days ago

Last reply by Eve 42 seconds ago

I have been trying for a long time to open my hotmail with this browser. I'm tyred ! I only can do with chrome. Trying also to update your browse , no way! I like this browse. Please help me

I have been trying to login in my hotmail.com and only can do it with chrome. when I enter any shopping page the links don't work. I really like firefox but I'm tired o… (read more)

I have been trying to login in my hotmail.com and only can do it with chrome. when I enter any shopping page the links don't work. I really like firefox but I'm tired of trying. I am trying to update the browse, it doesn't work ! It seems to me that the mozilla browse i being blocked. thank you for being so good !

Asked by arelisgalavis9 1 hour ago

Last reply by cor-el 22 minutes ago

Move or Remove Back/Forward buttons on Contextual Menu, Mac OS

Love me FF, thanks for such a great browser. As the Subject describes, I just wanna move or remove the Forward/Back/Refresh/Bookmark controls either down or off the conte… (read more)

Love me FF, thanks for such a great browser.

As the Subject describes, I just wanna move or remove the Forward/Back/Refresh/Bookmark controls either down or off the contextual menu. I am constantly right-clicking for dev purposes and it automatically clicks the back button almost every time and thus goes back to the previous page. THIS IS A HEADACHE AND A TIME SUCK.

Screenshot attached. Any help is appreciated.

Asked by herbthefourth 1 hour ago

Last reply by cor-el 26 minutes ago

browser.startup.homepage

When I open Firefox, I receive the following: Firefox can’t find the file at jar:file:///C:/Program Files/Mozilla Firefox/browser/omni.ja!/chrome/en-US/locale/branding/b… (read more)

When I open Firefox, I receive the following: Firefox can’t find the file at jar:file:///C:/Program Files/Mozilla Firefox/browser/omni.ja!/chrome/en-US/locale/branding/browserconfig.properties. I have seen the help that suggest I go to "about:config" and the browser.startup.homepage, which I have done. But the suggestion doesn't state what I should do once there. What do I do to the browser.startup.homepage?

Asked by rand9149 5 hours ago

Last reply by cor-el 41 minutes ago

Single click Bookmark delete button

Hello, I am running FF 78.0.1 on W10. I had to upgrade to a new laptop from W7 but also running FF. On my other computer I had a star button that had rounded tips that wa… (read more)

Hello,

I am running FF 78.0.1 on W10. I had to upgrade to a new laptop from W7 but also running FF.

On my other computer I had a star button that had rounded tips that was located just to the left of the bookmark star. The rounded tip star simply performed the two step action of clicking the bookmark star and then clicking Remove Bookmark, but all with one click.

After moving to this new setup I miss this feature. I have searched this site and the internet and found no references as to how to add a button that performs the actions.

Does anyone have an idea on how to get a button like this with these features?

Thanks in advance for your help!

Asked by RHB10 3 hours ago

Last reply by cor-el 42 minutes ago

Adding New Filetypes to Download List

I am following directions on this page, which is supposed to be applicable to my version Firefox 78.0.1 on my Windows 10 Pro 64 system: https://support.mozilla.org/en-US/… (read more)

I am following directions on this page, which is supposed to be applicable to my version Firefox 78.0.1 on my Windows 10 Pro 64 system:

https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file#w_adding-download-actions

But when I come to the subheading, "Adding Download Actions", it shows a dialog window which is unlike the one I get. Of the two images I've attached, the article shows the larger while I am offered the smaller. The article says the "Do this automatically" checkbox may be disabled, but doesn't mention it being absent: "Is Do this automatically for files like this from now on disabled? This can happen if the website's server incorrectly specifies the Internet Media type of the file. It also can happen if the server assigns "Content-Disposition: attachment" to the file. Could be the case here. Whether it is or not isn't important. What is important, is adding filetypes. I have no qualms with editing the registry if necessary. Can someone help me out with this?

Asked by fsawtelle 3 hours ago

Last reply by cor-el 1 hour ago

How do I install Firefox on a new Windows 10 PC?

I have an older PC that I have been using with Win 7 as its OS. It's still there on one of the three HDDs that's in the PC. I have since added a fourth drive, which is a… (read more)

I have an older PC that I have been using with Win 7 as its OS. It's still there on one of the three HDDs that's in the PC. I have since added a fourth drive, which is a WD Blue SSD which is 560 MB/s big, and has Windows 10 installed and running on it, when I start up this PC.

How do I go about replacing the Microsoft software with Firefox and Thunderbird? The Win 10 software is different than Win 7 so I don't know how to use very well. And the Win 10 instructions don't exactly match up with the Win 10 that is installed on my PC, so if some-body could list some of the steps that are more accurate than what MS has given, I would appreciate it.

Asked by warp4dennis 2 hours ago

Last reply by ARMAN KHAN 2 hours ago

How to stop URL bar from enlarging on click onf firefox 77?

I hate it when I click on the url-field and its size change. It wasn't there in former firefox versions and I did not miss it. It changed some time ago. Any decent softwa… (read more)

I hate it when I click on the url-field and its size change.

It wasn't there in former firefox versions and I did not miss it. It changed some time ago. Any decent software development would have introduced his new feature and provided a "classic" option to turn it off. Not so firefox. Mozilla introduced it and I had to google how to get the old behaviour back. No option.. I have to go to about:config, ignore teh warnings, find some weird options and set them to false and the mozilla turned that off too. Now the was to change it is to set up a css-file, got to about:config again to make firefox actually read that file, place some mystery css-code in there and it still does not work!

Very annoying, an outstanding example of bad practice how to introduce new features and take away users choices.

So: How to stop URL bar from enlarging on click?

Asked by joe80 3 weeks ago

Last reply by cor-el 2 hours ago

getting a error: "There was an error parsing the JSON document. The document may not be well-formed."

I tried to log on AWS web console and I get the following error: There was an error parsing the JSON document. The document may not be well-formed. unexpected character a… (read more)

I tried to log on AWS web console and I get the following error:

There was an error parsing the JSON document. The document may not be well-formed. unexpected character at line 1 column 1 In the inspector there is an error message: "Content Security Policy: The page’s settings observed the loading of a resource at inline (“default-src”). A CSP report is being sent." Everything works in chrome and edge

Asked by djdougan 4 hours ago

Last reply by cor-el 2 hours ago

Recently used sites no longer appear in the address bar?

I am on 78.0.1 (64-bit) in Windows 10. Suddenly my most used sites no longer appear in the address bar when I enter it. I have no idea why this is happening. What can I … (read more)

I am on 78.0.1 (64-bit) in Windows 10. Suddenly my most used sites no longer appear in the address bar when I enter it. I have no idea why this is happening.

What can I do to get that functionality back?

Asked by bill0287 4 hours ago

Last reply by ARMAN KHAN 3 hours ago

Manually rearranged bookmarks

I've manually rearranged my bookmarks in the Library window by following the steps shown in the "Rearranging manually" section of https://support.mozilla.org/en-US/kb/sor… (read more)

I've manually rearranged my bookmarks in the Library window by following the steps shown in the "Rearranging manually" section of https://support.mozilla.org/en-US/kb/sort-bookmarks-quickly-find-ones-you-want#w_rearranging-manually

  • How can I get the new arrangement to be displayed in the "Recently Bookmarked" window?

or

  • Can I delete the "Recently Bookmarked" window so the manually-rearranged bookmarks in the Library window are displayed in the "Recently Bookmarked" window?

Asked by gcotterl 6 hours ago

Last reply by jscher2000 3 hours ago

Adblocker Extensio

We provide a free adblocker to our customers. In previous versions of FireFox we could install the extension with our provided MSI installation file. But with the rece… (read more)

We provide a free adblocker to our customers. In previous versions of FireFox we could install the extension with our provided MSI installation file. But with the recent updates to FF, it no longer works. What do we need to add or do in order for the MSI to continue to work?

Asked by devops2 4 hours ago

Last reply by TyDraniu 3 hours ago

Firefox keeps crashing when trying to print

Hi! I've switched to Firefox quite recently and I love pretty much everything about the browser. The only problem I've been experiencing is that whenever I try to print a… (read more)

Hi! I've switched to Firefox quite recently and I love pretty much everything about the browser. The only problem I've been experiencing is that whenever I try to print a page the whole browser crashes. I've tried removing all the settings for printing in prefs.js but that didn't seem to help in any way and the crashes don't turn up in the about:crashes tab. Has anyone else been experiencing this and perhaps knows how to fix it?

Asked by Lord Questionmark 6 hours ago

Last reply by FredMcD 3 hours ago

Firefox desktop redirects bank sites to login

The Firefox browser on Windows desktop 100% redirects to an isolated and unusable bank login page. No other browser does this. Firefox Android does not do this. I tried c… (read more)

The Firefox browser on Windows desktop 100% redirects to an isolated and unusable bank login page. No other browser does this. Firefox Android does not do this. I tried clearing cookies / cache, disabled all extensions, safe mode without success. This is very frustrating when trying to use and support Firefox over Brave which never has these issues. In both cases below, the initial site nearly fully loads then redirects. Malware not an issue given very tight PC security and new install of Firefox.

Chase.com -> https://secure03a.chase.com/web/auth/logonbox?lang=en&fromOrigin=https%3A%2F%2Fwww.chase.com#/logonbox/index/index

schwab.com -> https://lms.schwab.com/Login?clientId=schwab-prospect&startInSetId=1&redirectUri=https://client.schwab.com/login/signon/authcodehandler.ashx&enableappd=false

Both of the redirects contain only the login forms of the main page (eg "Login ID", "Password", "Login" button)

Asked by mayorjc 4 days ago

Last reply by FredMcD 3 hours ago

Significantly higher FIrefox usage

This is my rig: www.bit.do/kanishkpc and I use the latest Firefox Beta (always updated) I have been using Firefox without the kind of memory usage that I am seeing recent… (read more)

This is my rig: www.bit.do/kanishkpc and I use the latest Firefox Beta (always updated)

I have been using Firefox without the kind of memory usage that I am seeing recently. With ~10/15 tabs open, my PC would never be troubled. The RAM usage wouldn't be at 90% but in the past few days (possibly because of a beta update?) I get 50% RAM usage (8GB) with 15 tabs. Yesterday concurrently loaded ~6 YouTube tabs caused a 90% usage from the app and I had to close it.

The RAM usage might seem normal but Firefox actually never uses that much RAM - or didn't earlier at least.

I used MalwareBytes a few days ago to do a malware scan and it found my PC clean. If I did have malware (I had a bit of scare earlier), how would I detect it?

Asked by Lance 1 day ago

Last reply by FredMcD 3 hours ago

Is it possible firefox has been comprimised

Out of all the hundreds of websites I regularly visit each week, two websites flag the exact same security warning on Zone Alarm every single time I visit them, and I hav… (read more)

Out of all the hundreds of websites I regularly visit each week, two websites flag the exact same security warning on Zone Alarm every single time I visit them, and I have never gotten this warning anywhere else at any other website. I am already aware these two websites are not to be trusted so I suspect they have engineered something to compromise the Firefox web browser. Zone Alarm pops up a warning that "Firefox is attempting to monitor user activities on this computer. If allowed it may try to track or log keystrokes (user input), mouse movements/clicks, websites visited, and other user behaviors." A screen-cap of the Zone Alarm warning is attached. I deny this action in Zone Alarm every time it happens. Let me again emphasis this happens nowhere else, only at these two sketchy websites I occasionally visit and it happens every single time I go there and my concern is that they have embedded something in their webpages compromising the Firefox web browser.

Asked by catrike 5 hours ago

Last reply by jscher2000 4 hours ago

Svg path d doesn't work

<svg><g><path fill="red" d="M-17169009 -11080329L16366781 -11080329L16366781 22493289L-17169009 22493289z"></path></g></svg> It works … (read more)

<svg><g><path fill="red" d="M-17169009 -11080329L16366781 -11080329L16366781 22493289L-17169009 22493289z"></path></g></svg>

It works in Chrome 83.0.4103.116, but doesn't work in Firefox 78.0.1. Could you fix it in Firefox?

Asked by A.Repnin 6 hours ago

Last reply by TyDraniu 4 hours ago