When and how did it happen? Have you installed the latest EverSync update?

Do you use separate EverSync addon? https://addons.mozilla.org/en-US/firefox/addon/fvd-synchronizer/

Hello!

Thank you for your report! We will fix it asap.

Do you use separate EverSync addon?

https://addons.mozilla.org/en-US/firefox/addon/fvd-synchronizer/

Hello! We are currently working on this task and Restore tabs function will be available in the next update.

Hello! We've added this functionality. Thank you!

Поисковик можно выбирать в другом нашем аддоне Live Start Page

Chrome: https://chrome.google.com/webstore/detail/live-start-page-living-wa/ocggccaacacpienfcgmgcihoombokbbj?hl=en

Firefox: https://addons.mozilla.org/en-US/firefox/addon/live-start-page-lst/

What happens in Chrome? Could you make screenshot or video for us?

What do you mean by fast dial? Is this Fast Dial Chrome extension? 

We made EverSync for our extension called FVD Speed Dial. Not for others speed dial addons.

Какое у вас количество дилов?

Show us account tab of EverSync.

It's probably preview auto updating.

you can turn it off in settings.