I-Firefox Community Forum

I need to revert to the prior version - my Firefox updated automatically and now there's a bunch of stuff that make using it very hard for me.

Background - I have a TBI that limits my ability to process input. This new version has dropdowns on tabs that are useless and extraneous and make it hard for me to find what I need. I want the old version back so I don't get confused.

I got one response to my prior inquiry with some words and stuff that didn't make sense and when I tried to follow the "directions" what the response said would happen didn't. I tried to restart the search for how to fix this so I can function but it's been ignored for 5 days now.

CAN SOMEONE PLEASE TELL ME HOW TO GO BACK TO THE PRIOR VERSION which was working just fine PLEASE???

I have not noticed this before upgrading my Mac to Sequoia 15.0, using latest Firefox browser update, but "printing to PDF" which I used in the past extensively, makes a PDF file that causes the letters to be one ASCII number off. So if I type into the "search" field "p", then all the "o's" are highlighted. I can only enter a search term if I usean "ASCII number +1" technique, so I can search for "get" by typing in "fds". Numbers are searched for as in the past. This is not happening if I make a PDF using my Safari browser, all the PDF words are correct and searchable as in the past. Anyone have insights as to why this might be occurring? I will try restarting in "safe" mode and re-downloading Firefox as is suggested in some of the articles here. Thanks!

I have Firefox version 136.0.2. I think it was quite recently updated. The right click menu is broken. The choice list is much longer, and the choices "open link in new tab" and "copy link" (ones I tried) do not work. This only started happening this morning. Right click works fine in Chrome. Screenshot included.

Every website I try to visit with Firefox produces a page which reads "Suspected Phishing." And when I click on "Ignore and proceed" I am taken to a blank webpage. Each web address in the URL field reads "SmartDirect.de." Firefox has thus, for me, become a useless browser.

Is there anything I can do to fix this problem with Firefox? In answering my question please bear in mind I do not have a PhD from MIT and am not an expert in computer science.

I have a windows 7 operating system running Firefox v115.40.0esr and the program runs but I am continually getting the error: The procedure entry point GetSystemTimePreciseAsFileTime could not be located in the dynamic link library KERNEL32.dll Is there a fix for this?

I’ve noticed that Firefox consumes a lot of memory, especially when I have multiple tabs open. Sometimes, it slows down my entire system, and Task Manager shows Firefox using over 1GB of RAM even with just a few tabs. Other browsers like Chrome or Edge seem to handle memory better with the same number of tabs.

I’ve tried restarting Firefox, closing unused tabs, and disabling a few extensions, but the problem keeps coming back. I even checked techsquest.com for tips, but I’m still struggling. Are there specific settings, hidden features, or optimizations I can apply to reduce Firefox’s memory usage without sacrificing performance?

Here’s what I’ve already checked:

Firefox is updated to the latest version.

No unusual extensions running (just uBlock Origin and Dark Reader).

Hardware acceleration is enabled.

Any help would be appreciated—thanks in advance!

Hello, ever since I upgraded MacOS to 15.3.1 and Firefox to 135.0.1 the top menu bar seems to disappear. I do not know which is the culprit, but on MacRumors (https://www.macrumors.com/) you'll find several others with the same experience.

My personal observation is that it seems to happen on various Silicon hardware (tried 3) and when multiple tabs are active.

The bug is no showstopper, but to proceed you got to click on the (invisible) menu bar in the upper left. Thanks for reading.

JOOP!

Hello I've been a Firefox user for decades; recently a problem suddenly appeared that I'd never encountered before; I mentioned it to you but you didn't see fit to reply. I have twice 'repaired' Firefox, to no avail. After hours of Internet research, I've discovered the nature of the problem: it's called FirefoxCP Isolated Web Content. According to the many forums I've consulted, you're perfectly aware of it. So I don't understand : - why you don't take the trouble to reply to a user with a problem. - and, above all, that you're perfectly aware of the problem and don't do everything in your power to solve it. As 'killing' an activity in my Mac's activity monitor every ten minutes is rapidly becoming unbearable, I'm going to have to change my browser, much to my chagrin. Farewell dear Firefox!

Translated with DeepL.com (free version)

As title says, whenever I'm scrolling through any website there's a lot of flickering, did some research and past "fixes" said to turn off smooth scrolling and hardware acceleration, which I tried but all it did was minimise the effects, this flickering has only been happening for the last day or so.

Firefox Developer Edition version - 139.0b1 (64-bit) Nightly version - 140.0a1 (2025-04-30) (64-bit)

Youtube video showing what's happening

My twitch website tweaking, youtube tweaking then sometimes the home page is tweaking things are very glitchy and what not. i love firefox cz its open source but these wearid issues kinda make me always switch back to chrome from time to time

I am seeing a new problem with the latest Firefox version 370.0.2 (aarch64).

When I try to load a link, Firefox seems to go into a sort of "spasm" with repeated attempts to load the link via multiple new web pages.

The link finally loads, however if the link is a login page I can get login failures due to multiple login attempts (e.g. Microsoft login fails authentication due to multiple attempts.)

Please can you help with this ASAP.

Many thanks AJ

There is a similar (but not identical) topic on Mozilla Connect , and I posted there. But I did not get a response. So I am re-posting on this new topic on Mozilla Support. I have a similar problem to what was discussed on Connect. I am using Firefox 133.0.3 on Windows 10 Professional. After Firefox has been running for a while, I get a message from Windows 10 that the free space on my C:drive is low. I did a directory listing on my C-drive before and after Exiting Firefox; I saw no large files disappearing. Then I decided to do "dir c:\ /ah" to see hidden files. What I saw was that pagefile.sys decreased in size from 29,925,748,736 to 16,270,770,176. This was a decrease of 13.7 Gb. Is this normal? I have lots of windows and tabs open in Firefox. Thanks.