Word Counter от Adil Balti

This Free word counter extension for Mozilla Firefox instantly counts words, characters, sentences, and paragraphs on any webpage or custom text.
Features:

Word count, character count, sentence & paragraph counter
Reading time & speaking time estimator
Readability scores: Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG & ARI
Keyword frequency & keyword density analyzer
Unique word count, syllable count, longest word & average word length
Analyze selected text, full page, or paste custom text
Export & copy stats report
Dark & light mode