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Proper Syntax For UBlock Origin (UBO) > "My Filters"

Zaphod Beeblebrox answered on November 24, 2022 Popularity 1/10 Helpfulness 1/10

answer Proper Syntax For UBlock Origin (UBO) > "My Filters"

Proper Syntax For UBlock Origin (UBO) > "My Filters"

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*Note*: Not code. This is meant as a mini cheat sheet for the basic 
syntax required to manually edit and/or create cosmetic filters in UBO. 
A minimum of one element must be matched in order to be read as a valid 
filter. 'Adblock Plus' has a more detailed write-up on it here:
https://adblockplus.org/filter-cheatsheet#elementhiding. 

Example DOM tree:

<div id="unique-identifier" class="first-class second-class" data-storage="123-456">
<div class="first-class">

## - this is always present in cosmetic filters - this means this is cosmetic filter
##div - selecting by element type
###unique-identifier - selecting by id, ## + # - this should be very efficient, because there should be only one unique identifier for page
##.first-class - selecting by class, ## + . - will match other elements with same class, so:
##.first-class.second-class - use both classes to select only first line from example DOM.
Using dot for classes automatically split value of the class attribute on space characters.

Selecting by attribute:

##[data-storage="123-456"] - will match exactly
##[data-storage^="123-"] - will match from the beginning
##[data-storage$="-456"] - will match from the end
##[data-storage*="3-4"] - will match in the middle
##[id="unique-identifier"] equivalent of ###unique-identifier
##[class="first-class"] equivalent of ##.first-class, but will match only second line from example DOM - class attribute is compared literally, no splitting on space characters.

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: git.furworks.de

Tags: proper syntax whatever

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Contributed on Nov 24 2022

Zaphod Beeblebrox

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Proper Syntax For UBlock Origin (UBO) > "My Filters"

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