Φόρουμ κοινότητας «Firefox»

Dear Support,

Firefox exhibits significant performance and usability issues related to its cookie and data storage management. Despite implementing ad blocker extensions, the browser remains saturated with cookies and persistent advertisements. Regularly clearing browsing data and cookies is necessary; however, navigating to the settings menu is time-consuming. I recommend developing a browser widget that facilitates rapid data clearing directly from the toolbar or frame. Additionally, implementing a session-saving feature to preserve a set of pinned tabs upon closing and reopening the browser would enhance workflow efficiency, allowing for a quick start with a predefined workspace.

This is all happening while using it for simple tasks like search or copying a text.

Furthermore, the browser experiences severe performance degradation when utilizing certain web applications, such as Kapwing for video editing. Since uninstalling Vivaldi, I am considering migrating to an alternative browser due to these issues. Tasks that typically require one minute are now prolonged to hours, as the browser intermittently becomes unresponsive, effectively limiting usability. This sluggishness persists even after system restarts, with CPU utilization reaching approximately 50%, as detailed in the attached performance report. Notably, I encountered a significant delay—up to an hour—to correct a single spelling error or open a new tab, indicative of underlying performance bottlenecks.

Please address these issues to improve browser stability and usability.

Estimator Just tell me how long this is probably gonna take: 4 to 16 hours. Not kidding!

Dear reader,

I wanted to completely removed Firefox because i had some issues. Instead om removing I probably refreshed FF.

Can somebody help with?

1. How to remove old FF data which is placed on my desktop and blocked for removal by admin rights. 2. How to completely remove FF without leaving any data (profiles, extensions)

I have tried to find this answers in the help sections but I was not able to find the solution for my situation.

Thanks in advance. With kind regards,

Ilco

Greetings,

I'm using & viewing the most updated Firefox browser on a Windows 10 Pro (64 bit), desktop, 24" monitor screen.

With the current updates, the list of bookmarks in my Bookmarks Bar has become very small, skinny & overly spaced, hampering readability.

Though I have learned how to enlarge the bookmarks font size, using the "about:config" & updating the 'layout.css.devPixelsPerPx' attribute, the font still remains very skinny & overly spaced.

Is there an attribute that I can change to alter the Font Style (for example to "Semi-bold") & Spacing of the bookmarks list? If so, please be kind enough to describe the process & I'll give it a go.

If a Firefox Development Team member happens to be reading this post, I'd like to put in a request to add some Bookmarks Bar "FONT EDITING" tools accessible via the browser SETTINGS dialogue, to accommodate readability on ALL the various OS & computer form factors that have proliferated these days.

Thank you, Bruce

Hey all,

at shell:startup on windows i will open firefox two times (first for multimedia like tv-stream and maston, second for "working activities" like webmail, office online).

How can i open by file explorer link (like in shell:startup) a new tab (newspaper) everytime in instance "first" even if i was using second at last?

Hi.

I'm having trouble with https://support.mozilla.org/en-US/kb/linux-security-warning?as=u&utm_source=inproduct#firefox:linux:fx140.

It assumes the installation is at "/home/<USER>/bin/firefox/{firefox,firefox-bin,updater}" but mine is "/home/<USER>/.local/share/torbrowser/tbb/x86_64/tor-browser/Browser/firefox.real".

How exactly do I edit the line?

(Latest Ubuntu. I also have Librewolf and Firefox, but didn't see the warning as on Tor.)

Samuel

I'd like to start adding my customized settings to a user.js file. How can I figure out what the correct code is for each option under Tools|Settings in FF 140.12 ESR

Hi I noticed that some old links in my history are automatically deleted. How to configure expiration rules (if possible) in order to keep links forever, until manual deletion? I know that links can be saved in the bookmarks, but when browsing the Internet, unless bookmarking everything :(, no one knows if a link can be useful in the future.

Thanks for your help

7/7/2026 Last night Firefox on my laptop performed an automatic update to the latest Firefox version. The new Firefox has a very bad setting in about;config .. this new Firefox can only show 1 tab ... it is opening up a new tab on top of the first tab, making it impossible to have more than 1 tab ..

This is going cause problems for thousands of Firefox users .. . how I fix this problem ... I tried setting the add tab settings into about;config to add a new tab to the right of the current tab, but my change made no difference ... how can I fix this problem ... does Firefox have a plan on how to fix for this problem for thousands of Firefox users.. this problem will impact thousands of Firefox users..

Received Failure notice from astrologyanswers.com and support at astrologyanswers.com Can this be fixed? Was working fine until today. Joe Kil

Hi

Lets say i have 100 tabs open in my session. I mistakenly open a new window with one tab. After closing this window and starting firefox again, it starts with this one tab, so i have lost all my previously opened tabs. Is there a way to get those back?

Thank you very much. Dimitris

I wanted to open www.wattpad.com ,but firefox is not reaching the web i request u to resolve this problem as soon as possible

There going down like flies chief I have no idea how long they'll last or what the root cause is but I have report numbers listed below: bp-6a2f6577-50b4-4503-aa6f-edc0c0250714 7/14/2025, 5:44 AM bp-cca0da19-acc6-4699-b2fd-f78070250714 7/14/2025, 5:44 AM bp-3afd947d-1ab0-4e44-9fee-f4cbb0250714 7/14/2025, 1:05 AM bp-9399b8e9-a389-41bb-9231-a95d50250714 7/14/2025, 3:54 PM bp-8e2c1005-1c7b-49ea-8a50-dbb780250714 7/14/2025, 3:55 PM bp-d270fbee-4e08-4c3b-a6ce-870400250714 7/14/2025, 3:55 PM bp-1cd7a43d-c702-4a15-bb9f-396ef0250714 7/14/2025, 3:56 PM bp-e6cd9efa-9998-4408-872a-713c60250714 7/14/2025, 3:56 PM bp-23709997-e2af-4463-b1ce-b7a4f0250714 7/14/2025, 3:56 PM bp-d46d3db6-876e-4794-a500-f1a590250714 7/14/2025, 3:56 PM bp-723ea32e-8da6-46c0-bbc2-ea5190250714 7/14/2025, 3:56 PM bp-a8860709-a511-44de-9f6a-318560250714 7/14/2025, 3:56 PM bp-fa8c5f4b-5b15-46d1-8df6-ae76f0250714 7/14/2025, 3:56 PM bp-bc81e502-f570-4e59-86b3-e2d720250714 7/14/2025, 3:56 PM bp-ddfeae99-8833-4297-9d0c-010d20250714 7/14/2025, 3:56 PM

Hello,

 I have Firefox 140.0 on Windows 11 23H2.  I just noticed that the Favorites Sidebar text and background are both dark.  The History Sidebar does not have this problem.  Changing either Firefox or Windows color scheme has no effect.  I'm pretty sure this happened with the latest update. 

Thanks

I just want the "X" button that used to be next to refresh page button or at least the option to enable it in the settings and to have it. If there is such a setting, please someone navigate me to it.