Martin Brinkmann at gHacks reports
Users of Stylish [a web browser extension "that can apply a user-supplied style sheet to a web page, in addition to the Cascading Style Sheets provided by the website itself"] who have set their styles to auto-update may have noticed that they become corrupt in the process since October 6, 2016.
This is caused by an infrastructure move after ownership of the project was transferred to another party.
[...] Probably the biggest issue right now is that users are reporting that styles are not delivered in working condition during updates. It seems to be a transport issue and not one of storage.
[...] It is highly suggested to turn off automatic updates for userstyles until the issue is resolved.
[...] The issues [share] similarities with how the then-popular userscripts.org website stopped working from one day to the next. Lets hope that this is not a repeat of that.
(Score: 3, Informative) by maxwell demon on Tuesday October 11 2016, @06:44AM
To remove all style elements, Firefox has a special option (you can choose "no style"). In the German version on Linux, it's in the menu "Ansicht" (should be "View" in the English version) under the submenu "Webseiten-Stil" (maybe it's "web page style" in the English version). So for that, you don't need a bookmarklet.
Yes, you need to show the menu bar; I don't see a way to access this feature from the devolved user interface. Fortunately they still have not completely removed the menu bar, just hidden it by default.
The Tao of math: The numbers you can count are not the real numbers.