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I switched to Floorp two months ago since it has native vertical tabs (which I greatly prefer over Tree Style Tabs since its a little buggy) and it has been running fine, though earlier this week I got a bug where I set a hotkey and removing it didn't clear it (it still triggered), even after restarts. I tried switching to the tab to the left with CMD OPT Left arrow, and accidentally set a hotkey for toggle the synced tabs sidebar.

I use that hotkey all the time and it basically ruined my workflow, it takes much longer to switch tabs with the mouse. I just found a workaround where I run my Floorp profile in Floorp Daylight (the beta version of Floorp, equivalent to Firefox Beta) remove the hotkey there, then run regular Floorp again.

While I'm happy with Floorp's exclusive featrues, I really wish they were in upstream Firefox because this is a big downside of using a fork, it has its own bugs. And I have to wait for changes from newer Firefox versions to get merged.


From the post:

In 2023, a significant portion of Firefox downloads came from unknown sources. We believe many of them came from 3rd party websites that let you download Firefox. While some websites are okay, others can put you at risk of downloading an old version or a build with the wrong locale, leading to security risks, a bad user experience, or even malicious installations.

Help the Firefox team to uncover this mystery by taking part in the Firefox 3rd-party installer campaign 3!

There will be swag, and you’ll be featured in our blog if you manage to report 10 valid reports. So don’t forget to invite your friends too!

Have any questions about this campaign? Join us on Matrix or watch the recording of our community call with Romain Testard, Principal Product Manager at Mozilla.

Please also help spread the word about this campaign by sharing this on your social media.

Keep on rocking the helpful web,

Kiki & Konstantina


This discussion on Mozilla Connect was updated today to include a demo video of the current progress of the addition of tabs in the sidebar.


I know I can spoof my useragent, it's just ridiculous that such a massive app doesn't support an equally massive browser.


There seems to be minimal information about this online, so I'm leaving this here so cooler heads can prevail in discussion.

Link to filing:

Notable portions:

Teixeira was hired as Chief Product Officer and was in line to become CEO.

Mr. Teixeira became Chief Product Officer (“CPO”) of Mozilla in August, 2022. During the hiring process, Mr. Teixeira had conversations with executive recruiting firm, Russell Reynolds Associates, that one of Mozilla Corporation’s hiring criteria for the CPO role was an executive that could succeed Mitchell Baker as CEO.

Also, shortly after being hired, Mr. Teixeira had conversations with Ms. Baker about being positioned as her successor.

After taking medical leave to deal with cancer, Mozilla swiftly moved to replace CEO Mitchell Baker with someone else.

Shortly before Mr. Teixeira returned from leave, Mozilla board member Laura Chambers was appointed Interim CEO of Mozilla and Ms. Baker was removed as CEO and became Executive Chair of the Board of Directors.

After returning, Teixeira was ordered to lay off 50 preselected employees, and he objected due to Mozilla not needing to cut them and their disproportionate minority status.

In a meeting with Human Resources Business Partner Joni Cassidy, Mr. Teixeira discussed his concern that people from groups underrepresented in technology, like female leaders and persons of color, were disproportionately impacted by the layoff.

... Ms. Chehak verbally reprimanded Mr. Teixeira, accusing him of violating [a] non-existent “onboarding plan” and threatening to place Mr. Teixeira back on medical leave if he did not execute the layoffs as instructed.

Mozilla's lack of inclusivity was a known problem

In February 2022, Mozilla commissioned the firm of Tiangay Kemokai Law, P.C. to assess its performance in providing a diverse, equitable, and inclusive workplace culture.

The report delivered in 2023 from Tiangay Kemokai Law, P.C. states in part: “MoCo falls into the Cultural Incapacity category based on leadership’s inadequate response to the needs of a diverse culture or else the need to create a more diverse, equitable, and inclusive culture, which is reflected in current systems, processes and procedures, policies and practices, or the lack thereof, and are incongruent with MoCo’s stated values and goals.”

Steve Teixeira has been put on leave.

On May 23, 2024, Mozilla placed Mr. Teixeira on administrative leave.

Mr. Teixeira requested a reason for being placed on administrative leave.

Mozilla did not provide Mr. Teixeira with a reason why he was placed on administrative leave.

Mozilla cut off Mr. Teixeira’s access to email, Slack messaging, and other Mozilla systems.

Mozilla instructed employees not to communicate with Mr. Teixeira about work-related matters.

Upon information and belief, an investigation into Mr. Teixeira’s allegations was finally conducted in late May 2024, but Mozilla did not do so under its internal policies and procedures regarding managing complaints of discrimination. Mr. Teixeira was not contacted to participate in the investigation into his complaint of unlawful treatment.

Coverage online so far

~~I say "alleged" because there appears to be no consensus on the veracity of this document.~~

Update: this appears to be confirmed.

This has received no "news" coverage besides one angry loudmouth (Bryan Lunduke) whose entire commentary career has been shaped by his political beliefs, regardless of truth.


And this is 100% Youtube's fault, not Firefox's fault, they created this issue:

This problem is triggered by bad muxed VP9 bytestream served by Youtube, so it's not a regression on our side, this issue can also be reproduced on old versions Firefox. Usually when muxing a video bytestream, the video samples' timestamp should be monotonizally increasing and no overlap between samples. But there are some bad video samples in YT's bytesteam, they overlapped with the previous sample. Eg. [124416000, 125126000] and [125125000, 131382000]. The next one should start from 12516000 instead of starting from 125125000 causing an overlapping.

That overlapped sample triggers this and our WebM demuxer fails to calculate the next timestamp in that situation. The end time of video sample was set to the same as the sample's start time, and that causes a gap being detected for the next sample, resulting in resetting append state. When doing so, mNeedRandomAccessPoint would be set to true and that triggers the sample skipping mechanism per the spec.

Therefore, there would be many sample being incorrectly skipped and won't be added into the buffered range. When entering the buffering state, Firefox would be waiting those sample which has been skipped but Youtube thought that those samples were already appended. That makes the endless buffering happened.

Source: (Alastor Wu [:alwu])


Straight to the point: Is there some way to add a button or shortcut to quickly enable/disable WebGL without having to find it in settings every time?

The only issues I'm having using FF are all related to having WebGL disabled, so I find myself reactivating it relatively often. I wish there was some kind of quick way to enable it for this session only, or for this tab only. If you have any ideas, please let me know.


I heard around the internet that Firefox on Android does not have Site Isolation built-in yet. After a little bit of research, I learned that Site Isolation on Android was added in Firefox Nightly, appearing to have been added sometime in June 2023. What I can't find, though, is whether this has ever been added to any stable versions of Firefox yet. Does anyone know anything about this?

Update: After further research, it appears that Site Isolation is not currently a feature in stable version of Firefox on Android. I don't know with certainty if their information is up-to-date, but GrapheneOS (A well-known privacy/security-focused fork of Android) does not recommend using Firefox-based browsers on Android due to it's (apparently) lack of a Site Isolation feature. A snippet of what Graphene currently have to say about Firefox on Android/GrapheneOS from their usage guide page, is: "Avoid Gecko-based browsers like Firefox as they're currently much more vulnerable to exploitation and inherently add a huge amount of attack surface."

On a side-note, they also say about Firefox's current Site Isolation on desktop being weaker, which I wasn't aware of. "Even in the desktop version, Firefox's sandbox is still substantially weaker (especially on Linux) and lacks full support for isolating sites from each other rather than only containing content as a whole."


YouTube has worked fine for me using Firefox with Ublock Origin, with no lag, notifications telling me to turn off ad blocking, or any of the other issues users have reported here.


Hi, Once in a while I try to clean up my tabs. First thing I do is use "merge all windows" to put all tabs into one window.

This often causes a memory clog and firefox get stuck in this state for 10-20 minutes

I have recorded one such instance.

I have tried using the "discard all tabs" addon, unfortunately, it is also getting frozen by the memory clog.

Sometimes I will just reboot my PC as that is faster.

Unfortunately, killing firefox this way, does not save the new tab order, so when I start firefox again, it will have 20+ windows open, which I again, merge all pages and then it clogs again !

So far the only solution I have found is just wait the 20 minutes.

Once the "memory clog" is passed, it runs just fine.

I would like better control over tab discard. and maybe some way of limitting bloat. For instance, I would rather keep a lower number of undiscarded youtube that as they seem to be insanely bloated.

In other cases, for most website I would like to never discard the contents.

In my ideal world, I would like the tabs to get frozen and saved to disk permanently, rather than assuming discard tabs can be reloaded. As if the websites were going to exist forever and discarding a tab is like cleaning a cache.


I use it all the time and have for years. Just seems like a weird feature to lock behind about.config and say it's not supported while they still support things like Pocket.

submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]

Celebrating #Firefox’s 20th birthday! 😍

Now at #MozFest ❤️🚀

@firefox @mozilla


Hi, recently Firefox (technically Librewolf) presents me with weird whitespace as in the image. I tried to search for something similar, and I did find some post, suggesting I'll edit my font configs (in settings), but this has no effect. I tried to also open in incognito mode or disabled all my plugins or even create a new profile on my machine, but the spacings are always like this. On proper firefox, I don't see this issue.

Any idea?


I seeked into the API in order to write a plugin for myself. In order to aid my workflow I need to listen to two keystrokes closely followed.

Apparently there are only hacks available. I want to fire-and-forget about my plugin as long as the API to command firefox stays consistent.

I did not attempt to write any code (and any JS code, honestly that is) yet. Simply because I did not get that requirement addressed by the official API /& documentation.

Recompiling firefox would be the least favorable option; But I would still be hooked if it would enable me to observe keystrokes on my own.

As an practical example: Pressing Shift two times in sequence and within 100 ms should enable me to eat the event.


cross-posted from:

As Original forget we not is archived now Without giving sync functionality. So, Do anyone know of similar addon.

Must Available for android and active development

Plus Sync functionality already implemented.


We have a few sites on our intranet at work that I constantly end up searching on Google instead of visiting the site.

If I type in the address bar

it will navigate just fine, but if I just type

it executes a Google search

Is there any way for me to add a whitelist for a given hostname? I don't want to turn keyword.enabled off.. I only want to turn it off for one site.

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