Great addon. I've been looking for a good speed dial addon quite a while and been testing many. This one is my fav so far.

Pros:
+ Most important: privacy is respected. The addon doesn't track usage nor does it send info about website usage to third-party services what is a must for such a tool.
+ The author tries to use as little rights as needed to make the addon work and he clearly explains the rights in the addon's description.
+ Thumbnails are loaded locally, it's even possible to use local graphic/logo files, i.e. no online connection needed.

Cons:
- Cutomising the look and feel, in particular size, of the dials is not yet possible
- Creating thumbnails from public library often doesn't show results. Maybe another service could be used here (like e.g. https://logo.clearbit.com)

I don’t know who is to blame, but now with Update 71 for Firefox, the page with Speeddial began to open with a delay of several seconds. Fix it if possible

Thank you very much.I was using speed dial in firefox 56 and prior to that.this is the same experience as before.I succesfully imported my dials with the option of .speeddial extentsion. 5 out of 5 stars.

nice

How to turn off Cloud sync?

This is useful and works very well and is a great replacement (with better features) of FAST DIAL. Many thanks !

So far so good. There are lots of options and at this moment have no time check all of them. Good job.
Update - Oh yes Juraj you had a very good idea developing this plugin. At first I thought, well, I'll give a try thinking I already have lots of bookmarks and this might be redundant. No it is not redundant at all. In fact it is much more powerful and easy to maintain and use than the native Bookmarks.
Thanks again.

New Update:
I dropped one star cause things are complicating. Maybe there are too many options or the whole thing is getting crowded and confused. Caveat emptor Juraj. A cute baby may be turn a monster.

It's all OK. Very good.
But with the last Firefox version (70.0.1) I lost all favorite site groups and in the GSD Option I didn't find the possibility to load the old saved setting.
So I downgraded to Firefox version 70.0.0 and all is now OK.
Bye

Excellent add-on, i like that is compatible with other discotninous add-ons and the free cloud sync feature. Highlly recommended.

Everything was perfect until I updated FF several days ago, and then Speed Dial started to crash FF and itself also. Now it dont even show my bookmarks and groups, and shows an error.

Environment health-check error: Error
Could not establish connection. Receiving end does not exist.
o@moz-extension://62dfe56a-2f32-44ce-8578-8095c19094be/dial.js:1:19374

Error: Could not establish connection. Receiving end does not exist.

Environment: Group Speed Dial 14.0; info: os: win, arch: x86-64; name: Firefox, vendor: Mozilla, version: 70.0, buildID: 20191016161957;
Running time: 4712 / 22017769
Stats: NA - 12,12,11
Runtime errors:
error getting runtime errors: Error: Could not establish connection. Receiving end does not exist.
Version: 14.0; OS: {"os":"win","arch":"x86-64"}; Browser: {"name":"Firefox","vendor":"Mozilla","version":"70.0","buildID":"20191016161957"};

The Best speed dial.

I used to love this add-on until the moment I updated my Firefox to 70. Now it is a crap working full of problems. Are you trying to fix the issues?

Best speed dial we've ever tried. And we've tried them all. It does everything it promises and has no bugs as far as we can tell. It even allows animated gifs as speed dial thumbnails which we love. Fun stuff. It's the only one we use now. Very highly recommended.