We wrote about how this extension makes firefox unresponsive, though it kind of is our fault for having 20 000 tabs open.

The developer responded -immediately- with a fix which we really appreciate and were surprised by. They told us to go to enable a performance setting in the general tab, that only considers active tabs.

However, the fix didn't work. It made firefox a little more responsive, but in that we only had to wait one minute per interaction with the browser instead of three.

Its really great addon.
but these is a problem with it.
I use a filter like this
```
youtube.com
~*cs50*
```
and also I checked "Treat keywords as allow-conditions rather than block-conditions" and I wonder that this addon open youtube homepage (which obiviously this happens when there is a 'cs50' video in the homepage) BUT when I click on that cs50 video to watch it, this addon block the `watch` page (while there is a 'cs50' in the video title under the video player). MAYBE this addon does NOT check the headings! please fix this problem

The only problem is that on Android even if we minimize the browser the timer still continues even after selecting the option in settings for this to not happen.

Everything works perfectly except for the Override function that doesn't seem to be working at all . This should be fixed asap as i have to disable use for private windows just to browse for say 10 minutes and then i have to go back and enable it again .

It doesn't work anymore. I'm on firefox and followed the steps perfectly, yet when I visit the sites I put in the "block" section nothing happens.

Is there an altenative that does not crash the browser periodically?

This extension is great at helping me with self-discipline. But there is one tiny detail that detracts from it a lot. It's the timer in the upper left corner. Yes, I realize if you double click on it it goes away, but you have to do this EVERY time you load a new page you haven't been to before. I find it frustrating and stressful to constantly have to remove a timer as I am using the internet. Please update the extension and make a way to permanently remove it! Thank you :)

Works as intended, but ended up disabling it when I discovered it is the reason that Firefox is never idling. So I have many tabs, and this plugin is always keeping 10% of the CPU busy (2 processes at 5% each). Disabling the plugin makes the problem go away. My version is 1.0.7.

The workaround mentioned in the FAQ did not work: count only active tabs setting did not make a difference for me.

The reason mentioned in the FAQ for this behaviour is:

> LeechBlock reviews all open tabs every second, to keep track of how much time is spent on the sites listed in your block sets and to determine whether any sites should now be blocked.

I do not need this "feature", I just want to disable access to certain websites from 9 to 5. Since I can't disable the feature, I had to disable the addon and search for a simple one.

Firefox 68 user here. Leechblock rating reduced to 3 stars; stops working, does not block URLs reliably. This used to be a stable and VERY useful extension, but now (Sep 2019) it stops working altogethter every few weeks (fails to block any of my specified URLs). Removing the extension and re-installing sometimes fixes the issue, but only temporarily. Hopefully a future extension or Firefox update will fix the bug causing LeechBlock to suddenly stop working entirely.

I used to have a good experience with this addon and its older pre-FF57 incarnation, but these days it paralyses Firefox as soon as I install or enable it. Does it conflict with other addons or features e.g Firefox Containers? Firefox Sync?
running on KDE Neon (=Ubuntu)

Answering the developer: yes, I have hundreds of tabs open (most are suspended). That's probably the issue then, thanks for the advice. I'll move my rating from 2 to 4 stars as the addon itself is great.

I don't know how to temporaily override blocking set.

Leechblock behaves unexpectedly.
I created a block specifically for YouTube but then I wanted to modify the times. The modification remains in the options but the add-on's behaviour was NOT changed. So I decided to delete the YT block and start over. BUT EVEN DELETION DIDN'T ERASE IT! YouTube is still blocked even though it has been erased! The result is I have to disable the add-on completely to watch YouTube. Frustrating.

Good idea but it keeps deleting my blocking options/sets. Might have to do with Firefox Sync.

My recommendation to users is to keep a copy of the URLs you want to block etc in a text file so you don't have to come up with them again! Also, always check "Immediately block pages on these sites once blocking conditions are met", otherwise this add-on is useless.

It's good

Great on my PC but not on my phone. Each time I reopen Firefox on my phone it seems to reset the counter.

This extension is really great. But after closing my Firefox and open it again every blocked option on it simply dissapear and LeechBlock don't block websites anymore

Loved this blocker previously and always worked well. However since updating to the NG version it periodically loses all preferences I have set, and no longer blocks any pages. While I have a relatively short list of sites I want blocked, it is still rather annoying and were it to continue I would try find a better solution.

Hello, love this add-on!

Would you be able to remove the requirement to have "Access to all data on all websites"?
It doesn't seem that you would need to require this, just the URL only...please correct me if I'm incorrect on this assumption.

Developers may say they don't use any form/login/password data but there's no way for the end user to know. Many of the revised 57+ add-ons have this blanket permission and in many cases it doesn't seem necessary...in my uneducated opinion, of course. I'm open to being schooled.

Thank you and best wishes!

Good, but purpose is defeated if the "restart with addons disabled option" is not removed

"This is a fantastic tool! However, everyone once in awhile, the restrictions just seem to disappear, without me removing them."
Same problem here!